PUBLIC REVIEW DRAFT DRAFT UGANDA STANDARD  
  DUS DEAS 981 
First  Editi on 
2019-mm-dd 
 
 Reference number  
DUS DEAS 981: 2019 
© UNBS 2019 
   
Hydraulic road binders ―Specifications  
 
 PUBLIC REVIEW DRAFTDUS DEAS 981: 2019 
ii                © UNBS  2019 - All rights reserved 
 Compliance with this standard does not, of itself confer immunity from legal obligations 
A Uganda Standard does not purport to include all necessary provisions of a contract. Users are 
responsible for its correct application  
© UNBS 2019 
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
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 PUBLIC REVIEW DRAFTDUS DEAS 981: 2019 
© UNBS  2019 - All rights reserved                iii National foreword 
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade, Industry and 
Cooperatives established under Cap 327, of the Laws of Uganda, as amended.  UNBS is mandated to co-
ordinate the elaboration of standards and is  
(a) a member of International Organisation for Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT Agreement of the World Trade Organisation (WTO). 
The work of preparing Uganda Standards is carried out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of representatives of 
consumers, traders, academicians, manufacturers, government and other stakeholders. 
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the 
general public for comments. The committee reviews the comments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
This Draft Uganda Standard, DUS DEAS 981: 2019 , Hydraulic road binders ―Specifications , is identical with 
and has been reproduced from an International Standard, DEAS 981 : 2019, Hydraulic road binders 
―Specifications , and is being proposed for adoption as a Uganda Standard. 
The committee responsible for this document is Technical Committee UNBS/TC 3,  Building and construction.  
Wherever the words, “ East African Standard " appear, they should be replaced by "Uganda Standard." 
 
 PUBLIC REVIEW DRAFT
DEAS 981:2019   
ICS 91.100.10   
HS 2522.00.00/   
HS 2523.00.00  
 
 
 
 
EAST AFRICAN STANDARD   
 
Hydraulic road binders ― Specifications    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EAST AFRICAN COMMUNITY    
 
© EAC 20 19 2nd Edition 20 19 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
  Table of contents   
1  Scope ....................................................................................................................... ...............  1 
2  Normative references...............................................................................................................  1 
3  Definitions.................................................................................................................. ..............  1 
4  Hydraulic road binder........................................................................................................ ....... 2 
5  Classification............................................................................................................... .............  2 
6  Constituents................................................................................................................. ............  3 
6.1  Main Constituents ............................................................................................ ........................  3 
6.2  Minor additional constituents ............................................................................................... .... 3 
6.3  Calcium sulphate .....................................................................................................................  3 
6.4  Additives ............................................................................................................................. ..... 3 
7  Requirements ..........................................................................................................................  4 
7.1  Mechanical requirements.........................................................................................................  4 
7.2  Physical requirements........................................................................................................ ...... 4 
7.3 Chemical requirements ― Sulphate content............................................................................  5 
7.4  Composition.................................................................................................................. ...........  5 
8  Standard designation ...............................................................................................................  6 
9  Conformity criteria.......................................................................................................... ..........  6 
9.1  Introduction................................................................................................................. .............  6 
9.2  Conformity criteria and evaluation procedure...........................................................................  6 
9.3  Conformity requirements...................................................................................................... .... 8 
10  Marking, packaging, delivery, and storage...............................................................................  9 
10.1 Marking...................................................................................................................... ..............  9 
10.2 Packaging.................................................................................................................... ..........  10 
10.3 Delivery...................................................................................................... ............................  10 
10.4 Packages..................................................................................................................... ..........  10 
10.5 Bulk Deliveries .......................................................................................................................  10 
10.6 Storage ..................................................................................................................... .............  10 
Annex A (informative) Bibliography .......................................................................................... ..........  11 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ii © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
 
Foreword  
 
Development of the East African Standards has been necessitated by the need for harmonizing 
requirements governing quality of products and services in East Africa. It is envisaged that through 
harmonized standardization, trade barriers which are encountered when goods and services are 
exchanged within the Community will be removed.  
 
In order to achieve this objective, the Partner States in the Community through their National 
Bureaux of Standards, have established an East African Standards Committ ee. 
 
The Committee is composed of representatives of the National Standards Bodies in Partner States, 
together with the representatives from the private sectors and consumer organizations. Draft East 
African Standards are circulated to stakeholders through the National Standards Bodies in the 
Partner States. The comments received are discussed and incorporated before finalization of 
standards, in accordance with the procedures of the Community.  
 
East African Standards are subject to review, to keep pace with technological advances. Users of 
the East African Standards are therefore expected to ensure that they always have the latest 
versions of the standards they are implementing.  
 
© East African Community 2005 — All rights reserved*  
East African Community   
P O Box 1096   
Arusha   
Tanzania   
Tel: 255 27 2504253/8   
Fax: 255- 27-2504481/2504255   
E-Mail: eac@eachq.org   
Web: www.eac.int   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
*  2005 EAC — All rights of exploitation in any form and by any means reserved worldwide for EAC Partner States’ NSBs. 
 
 
 
© EAC 20 19 — All rights reserved  iii PUBLIC REVIEW DRAFTDEAS 981:2019  
Introduction  
 
Depending on the local experience and the availability of products and materials, different binders 
are used for road bases and sub-bases, capping layers soil stabilization and soil improvement in this 
country. These include cements, building limes and road hydraulic binders presently defined in the 
other standards.  
 
Hydraulic road binders are finished products, produced in a factory and supplied ready for use.  
 
It should be noted that this standard carters for the manufacture and production of hydraulic road 
binders, which may include cements of strength classes not greater than 32.5 N/mm2. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
iv © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTEAST AFRICAN STANDARD  DEAS 981:2019   
 
 
 
Hydraulic road binders –  
Composition, specifications and conformity criteria  
 
 
1 Scope  
 
This East African Standard applies to hydraulic road binders produced in a factory and supplied 
ready for use in road bases, sub-bases, capping layers, and soil stabilization or soil improvement.  
 
It specifies the mechanical, physical and chemical requirements for hydraulic road binders, together 
with the conformity criteria and evaluation procedures to be applied by the manufacturer.  
 
The stabilized road bases, sub-bases, capping layers, and soil stabilization or soil improvement by 
application of this hydraulic road binder shall comply with the requirements of BS 1924-1 Stabilized  
materials for civil engineering purposes ― Part 1: General requirements, sampling, sample preparation 
and tests on materials before stabilizat ion and BS 1924 -2  Stabilized materials for civil engineering 
purposes ― Part 2: Methods of tests for cement -stabilized and lime –stabilized materials . 
 
2 Normative references  
 
The following standards contain provisions, which, through reference in this text constitute provisions 
of this standard. All standards are subject to revision and, since any reference to a standard is 
deemed to be a reference to the latest edition of that standard, parties to agreements based on this 
standard are encouraged to take steps to ensure the use of the most recent editions of the standard 
indicated below.  
 
EAS 18- 1 Cement  ― Part 1: Composition, specification and conformity criteria for common cements  
 
EAS 18- 2 Cement  ― Part 2: Conformity evaluation  
 
EAS 148- 1 Methods of testing cement  ― Part 1: Determination of strength  
 
EAS 148- 2 Methods of testing cement  ― Part 2: Chemical analysis of cement  
 
EAS 148- 3 Methods of testing cement  ― Part 3: Determination of setting time and soundness  
 
EAS 148- 4 Methods of testing cement  ― Part 4: Determination of the chloride, carbon dioxide and  
alkali content of cement  
 
EAS 148- 5 Methods of testing cement  ― Part 5: Pozzolanicity test for pozzolanic cements  
 
EAS 148- 6 Methods of testing cement  ― Part 6: Determination of fineness  
 
EAS 148-7 Methods of testing cement  ― Part 7: Methods of taking and preparing samples of cement  
 
EN 413- 1 Masonry cement  ― Part1: Specification  
 
EN 459- 1 Building lime  ― Part 1: Definitions specification and conformity criteria  
 
EN 459- 2 Building lime  ― Part 2: Test methods  
 
3 Definitions  
 
For the purpose of this East African Standard, the following definitions apply:  
 
 
 
 
 
 
© EAC 20 19 — All rights reserved  1 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
3.1  
autocontrol testing  
continuous testing by the manufacturer of hydraulic road binder samples taken at the point(s) of 
release from the factory/depot.  
 
3.2  
control period  
period of time fixed for assessment of a set of autocontrol test results production and dispatch 
identified for the evaluation of the autocontrol test results.  
 
3.3  
characteristic value  
value of a required mechanical, physical or chemical property having a prescribed probability P k of 
not being attained in a hypothetical unlimited test series. This value generally corresponds to a 
specific fractile of the assumed statistical distribution of the particular property.  
 
3.4 
allowable probability P k of acceptance CR   
For a given sampling plan, the probability of acceptance of a hydraulic road binder with a percentage 
of results outside the characteristic value equal to the probability P k (see 3.3).  
 
3.5  
limit value  
the value of the mechanical, physical or chemical property, which is not exceeded by a single test 
result.  
 
3.6  
factory  
facility used by a manufacturer for the production of hydraulic road binders using equipment which is 
suitable for continuous mass production of hydraulic road binders including, in particular, equipment 
for adequate grinding and homogenisation and the necessary silo capacity for the storage and 
despatch of each cement produced. This equipment and the production control applied allow the 
control of production with sufficient accuracy to ensure that the requirements of the relevant product 
specification standards are met.  
 
4 Hydraulic road binder  
 
A hydraulic road binder, when mixed with water hardens both in air and under water and remains 
solid, even under water.  
 
A hydraulic road binder is a factory produced hydraulic binder, supplied ready for use, having 
properties specifically suitable for road and rail bases and sub –bases, capping layers, soil 
stabilisation and soil improvement.  
 
A hydraulic road binder shall consist of a powder made from a blend of different constituents and 
statistically homogeneous in composition. A high degree of uniformity in all hydraulic road binder 
properties shall be obtained through continuous mass production process.  
 
NOTE Continuous production refers to the process, the definition of the product, its composition and properties but does not 
imply a 24 hour production.  
 
Qualified and skilled personnel and the facilities to test, evaluate and adjust product quality are 
essential for producing hydraulic road binders included in this standard.  
 
The manufacturing process and its control shall ensure that the composition of hydraulic road 
binders is kept within the limits of this standard.  
 
5 Classification  
The standard strength of a hydraulic road binder is the compressive strength determined in 
accordance with EAS 148-1 at 28 days.  
 
 
2 © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
Four classes of strength are covered in this Standard: class 5, class 12,5, class 22,5 and class 32,5, 
the minimum standard strength being taken as the criterion of classification.   
NOTE The strength classes are incorporated to enable the manufacturer to control quality and are not related to performance in 
bound mixes.  
 
For strength classes 22.5 and 32.5 a subclass E is defined by a minimum content of Portland 
cement clinker of 20% and an additional requirements for strength at 7 days  
 
6 Constituents  
 
6.1 Main Constituents   
The main constituents of hydraulic road binder shall be selected from the following:   
Constituents which conform to EAS 18-
1. Portland cement clinker (K) ;  
Granulated blastfurnace slag (S) ;   
Pozzolanic materials; natural pozzolanas (P) and thermally activated clays and shales (Q)   
Fly ash: siliceous fly ash (V) and calcareous fly ash (W) except that when used as a 
constituent of hydraulic road binders of classes 5: 12.5 and 22.5 the loss on ignition of the fly 
ash shall be 10,0% or less.   
Burnt shale (T); 
Limestone (L);  
Limes which conform to ENV 459- 1;  
Unslaked calcareous fly ash (W) containing at least 15% reactive calcium oxide (CaO) to be 
used only as a constituent of hydraulic road binders of class 5 and 12.5.   
NOTE Cements which conform to EAS 18 and masonry cements which conform to EN 413-1:1994 may be used in hydraulic 
road binder production providing that their constituents comply with the above requirements.  
 
6.2 Minor additional constituents   
Minor additional constituents may be added in proportion not exceeding 5% by mass. They are 
specially selected, inorganic natural mineral materials, inorganic mineral materials derived from the 
clinker production process or constituents as specified in 6.1 unless they are indicated as main 
constituents in the hydraulic road binder.   
Minor additional constituents, after appropriate preparation and on the account of their particle size 
distribution, improve the physical properties of the hydraulic road binder (such as workability or water 
retention). They can be inert or have slightly hydraulic, latent hydraulic or pozzolanic properties. 
However, no requirements are set for them in this respect.   
Minor additional constituents shall be correctly prepared, i.e. selected, homogenized, dried and 
comminuted depending on their state of production or delivery. They shall not increase the water 
demand of the hydraulic road binder appreciably or impair the resistance of the bound mixture to 
deterioration in any way.  
 
6.3 Calcium sulphate   
Calcium sulphate, gypsum, hemihydrate or anhydrite (natural or artificial) may be added to the other 
constituents of the hydraulic road binder during its manufacture . 
 
6.4 Additives   
Additives, for the purpose of this East African standard, are constituents not covered in 6.1 to 6.3, 
which are added to improve the manufacture or the properties of the hydraulic road binder. The total  
 
 
 
© EAC 20 19 — All rights reserved  3 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
quantity of additives should not exceed 1% by mass of the binder. If it does, the quantity shall be 
stated on the package and/or the delivery note.  
 
Additives shall not impair the properties of the hydraulic road binder or those of the bound mixtures.  
 
7 Requirements  
 
7.1 Mechanical requirements  
 
The compressive strength of hydraulic road binders shall be determined in accordance with EAS 
148-1. The cement being replaced by the hydraulic road binder.  
 
The prism shall be produced, stored and tested as specified in EAS 148-1, unless otherwise 
specified below.  
 
The prism shall be removed from the mould 24 hours after preparation and then stored, pending the 
test, at a relative humidity of not less than 90%.  
 
Should it not be possible to remove the prisms from the mould after 24h, it is permitted to remove 
them at a later age, and this age should be stated in the test report.  
 
When using moist air storage boxes the prisms shall not be allowed to come into contact with the 
water poured into the boxes up to a level of about 10mm. The lid shall close tightly and any felt seals 
shall be kept damp.  
 
Hydraulic road binders shall comply with the requirements of the table 1  
 
Table 1 ― Mechanical requirements   
 
Strength class  Compressive strength, in N/mm2   
 
At 7 days   At 28 days   
  
 
5 - ≥ 5 ≤ 15 
 
12.5 - ≥ 12.5 ≤ 32.5 
 
22.5 - ≥ 22.5 ≤ 42.5 
 
22.5 E  ≥10.0 ≥ 22.5 ≤ 42.5 
 
32.5 - ≥ 32.5 ≤ 52.5 
 
32.5 E  ≥ 16.0 ≥ 32.5 ≤ 52.5 
 
NOTE 1 The criterion for assessing the acceptability of an alternative method of compaction (as permitted in EAS 148-1) shall 
be that the difference between the averages of the two sets of 20 test batches when tested at 28 days shall not exceed 1.5 
N/mm2. The use of the “D” value is not valid. In the event of a dispute the reference method shall be used .  
NOTE 2 A loading rate of (400  40) N/s shall be used when testing specimens of classes 5 and 12.5.    
7.2 Physical requirements  
 
7.2.1  Fineness   
The fineness of hydraulic road binder shall be determined by sieving.   
Sieving shall be carried out in accordance with EAS 148-6. For this test the sieve residues shall not 
exceed the value in table 2. 
 
7.2.2  Initial setting time   
The initial setting time, determined in accordance with EAS 148-3, shall not be less than the value in 
table 2.  
 
7.2.3  Soundness   
For all strength classes of hydraulic road binder, the expansion, determined in accordance with EAS 
148-3 shall comply with the requirements of table 2.  
 
 
4 © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
Hydraulic road binders containing more than 4.0 % by mass of SO 3 shall, in addition, withstand the 
cold water test described in EN 459 -2 Clause 5.3.2.3. It shall be regarded as unsound if, following 
storage in water the two specimens have warping or gaping edge cracks either on their own or in 
conjunction with crazing.  
 
Table 2 ― Physical requirements  
 
Fineness % residue  Initial setting time  Final setting time  Soundness  
by mass 90 μm min hours  mm 
≤ 15 ≥ 120 ≤ 10 ≤ 10 
    
 
7.3 Chemical requirements ― Sulphate content  
 
The sulphate content, expressed as the percentage of SO 3 by mass, and determined in accordance 
with EAS 148-2, clause 8, shall not exceed 4.0 %.  
 
A sulphate content of up to 7.0% by mass is permitted for the following road binders, provided that 
they meet the requirements in 7.2.3.  
 
Hydraulic road binders containing burnt shale of calcareous fly ash, only if greater part of the 
sulphate content comes from the main constituents.  
 
Hydraulic road binders containing more than 80% by mass of granulated blast furnace slag.  
 
7.4 Composition  
 
7.4.1  Declaration of composition  
 
The constituents of a hydraulic road binder, and their average proportion in the finished product, 
shall be recorded. When requested by the user, the manufacturer (see clause 8) shall declare them. 
The constituents to be declared sh all be the main constituents’ (6.1) and calcium sulphate (6.3) if 
sulphate (SO 3) content of the hydraulic road binder exceeds 4%.   
NOTE Where the greater part of the sulphate (SO 3) content of the hydraulic road binder comes from the main constituents e.g. 
calcareous fly ash or burnt shale, the proprottion of calcium sulphate is not declared.  
 
7.4.2  Requirements   
The composition of a hydraulic road binder shall meet, for all constituents taken individually, the 
values documented by the manufacturer and declared if requested (see 7.4.1and clause 8) within 
absolute tolerances given in table 3.   
The content of Portland cement clinker of hydraulic road binders 22.5 E and 32.5 E shall not be less 
than 20%.  
 
Table 3 ― Recorded composition and tolerances  
 
  
Recorded proportion of a constituent 1) Absolute tolerance 1) 
> 20 %   10 %  
6 % to 20 %   5 %   
1) Values in percentage by mass of the hydraulic road binder.  
 
EXAMPLE: For a recorded composition of S 55, K 30, V10, the actual composition of the hydraulic road binder would be within 
the following limits:   
S: 45 % to 65 %   
K: 20 % to 40 %   
V: 5 % to 15 %  
 
 
 
© EAC 20 19 — All rights reserved  5 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
8 Standard designation  
 
Hydraulic road binders shall be identified on accompanying documents and, where relevant, on the 
packaging by a figure indicating the strength class. The letter “E” shall be added to the designation of 
those hydraulic road birders having a minimum Portland cement clinker content of 20%.  
 
When the constituents of the hydraulic road binder and their average proportion are to be declared 
on request of the user (see 7.4.1), they shall be included in the designation using the symbol of each 
constituent (see 6.1 and 6.3). Where cements, masonry cements and limes are used as 
constituents, the part of their standard designation referring to the type is used as symbol.  
 
NOTE Particular properties relevant to the intended use are not include in the standard designation, they may be declared on 
the delivery documents or packaging. 
 
EXAMPLE 1:   
A hydraulic road binder conforming to this Uganda standard, of strength class 22.5 is identified by:  
Hydraulic road binder CD/UK/1/2005 HRB 22.5  
 
EXAMPLE 2:   
A hydraulic road binder conforming to this standard, of strength class 32.5 and containing at least 20 % Portland cement clinker, 
is identified by:   
Hydraulic road binder CD/UK/1/2005 HRB 32.5 E  
 
EXAMPLE 3:   
A hydraulic road binder conforming to this standard, of strength class 12.5 and declared to be constituted of 55% granulated 
blast furnace slag, 25% siliceous fly ash and containing 15% calcium lime, is identified by: Hydraulic road binder CD/UK/1/2005 
HRB 12,   
S 55, V 25, CL 15  
 
9 Conformity criteria  
 
9.1 Introduction  
 
Compliance of hydraulic road binder with the requirements of this Standard shall be continuously 
assessed on the basis of spot samples taken at the points of release after production according to 
EAS 148-7, and tested according to EAS 148 Parts, 1,2,3,4 and 6 as relevant. This clause presents 
the necessary basic definitions, specifies the conformity criteria to be applied including the 
evaluation procedures and specifies the conformity requirements including the minimum sampling 
frequencies for each property to be tested.  
 
NOTE This standard does not deal with acceptance inspection at delivery. It is recommended that any acceptance at delivery of 
HRB hydraulic road binder should be at least in accordance with the conformity criteria specified in 9.2.3.  
 
9.2 Conformity criteria and evaluation procedure  
 
9.2.1  General  
 
Conformity of hydraulic road binder with this standard is assumed if the conformity criteria specified 
in 9.2.2.and 9.2.3 are met.  
 
9.2.2  Statistical conformity criteria  
 
9.2.2.1 General  
 
Conformity on the basis of continuos sampling shall be formulated in terms of a statistical criterion 
based on:  
 
The required mechanical and chemical properties defined as characteristic value, as specified in 
clause 7 of this standard   
The probability P k on which the definition of the characteristic value is based, as specified in 
table 4.  
 
 
6 © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
 
The allowable probability of acceptance CR of hydraulic road binder not conforming to the 
requirements, as specified in table 4.  
 
NOTE Conformity evaluation by a procedure based on a finite number of measurements can only produce approximate   
value for the proportion of results outside the characteristic value in a population. The bigger the sample, the better the  
approximation. The selected probability of acceptance CR controls the degree of approximation by the sampling plan.   
Table 4 ― Required values P k and CR  
 
 Mechanical requirements  Physical and chemical  
 
 7 and 28 day  28 day   
 
 strength  strength   
 
 (Lower limit)  (Upper limit)   
 
     
Probability P k, on which the definition  5 %  10 %   
of the characteristic value is based   
 
   
 
Allowable probability of acceptance   5 %  
 
CR   
 
   
 
 
Conformance with the requirements of this East African standard shall be verified either by variables 
or attributes as descried in 9.2.2.2 and 9.2.2.3.   
Table 5 ― Acceptability constant k A  
    
Number of test results n  kA1)  
 for Pk = 5 %   for Pk = 10 %  
 (lower strength property)   (other properties)  
20 to 21  2.40  1.93 
22 to 23  2.35  1.89 
24 to 25  2.31  1.85 
26 to 27  2.27  1.82 
28 to 29  2.24  1.80 
30 to 34  2.22  1.78 
35 to 39  2.17  1.73 
40 to 44  2.13  1.70 
45 to 49  2.09  1.67 
50 to 59  2.07  1.65 
60 to 69  2.02  1.61 
70 to 79  1.99  1.58 
80 to 89  1.97  1.56 
90 to 99  1.94  1.54 
100 to 149  1.93  1.53 
150 to 199  1.87  1.48 
200 to 299  1.84  1.45 
300 to 399  1.80  1.42 
>400  1.78  1.40  
Values given in this table are valid for CR= 5 %  
1) Values of k A valid for each value of n may also be used   
9.2.2.2 Inspection by variables  
 
The conformity shall be evaluated on the totality of autocontrol test results obtained on all samples 
taken during the control period. For this calculation the test results are assumed to be normally 
distributed.  
 
The conformity is verified when the following equation(s) is (are) satisfied:  
 
x - kA s ≥ L and  
 
x + k A s ≤ U 
 
 
© EAC 20 19 — All rights reserved  7 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
where   
x is the arithmetic mean of the totality of the autocontrol test results in the control period;  
 
s is the standard deviation of the totality of the autocontrol test results in the control period;   
kA is the acceptability constant;  
 
L is the specified lower limit given in tables 1 and 2 referred to in 7.1 and 7.2;  
 
U is the specified upper limit given in tables1 and 2 and 3 referred to in clause 6.   
The acceptability constant k A depends on the probability P k on which the definition of the 
characteristic value is based, and on the number n of the test results. Values of k A are listed in table 
5. The values of k A listed in the table are valid for 5% probability of acceptance CR of hydraulic road 
binder not conforming to the requirements.  
 
9.2.2.3 Inspection by attributes   
The number of test results outside the characteristic value c D . out of a totality of autocontrol test 
results obtained on all samples taken during the control period shall be counted and compared with 
an estimated number c A, calculated from the number n of autocontrol test results and the probability 
Pk as specified in table 4.  
 
Conformity is verified when the following equation is satisfied  
 
cD ≤ cA 
 
Values of c A, are listed The values are valid for 5 % probability of acceptance CR of hydraulic road 
binder not conforming to the requirements.   
Table 7 ― Values of C A  
 
Number of test results n  CA for P K = 10 %  
Up to 39  0 
40 to 54  1 
55 to 69  2 
70 to 84  3 
85 to 99  4 
100 to 109  5 
Note 1 Values given in this Table are valid for CR = 5 %.   
Note 2 If the number of test results is n < 20 (for P K= 10 %) a statistically based conformity criterion is not possible. In this 
case C A will always be 0    
9.2.3  Single result conformity criteria   
In addition to the statistical conformity criteria, compliance of test results with the requirements of this 
standard requires that it shall be verified that each test result of the properties shown in table 7 
remains within the limit values.  
 
9.3 Conformity requirements  
 
9.3.1  Mechanical, physical and chemical properties  
 
The conformity requirements for the mechanical, physical and chemical properties are given in 9.2  
 
Sampling shall take place at the point of release of the hydraulic road binder. The minimum testing 
frequencies and the statistical assessment procedure are specified in table 8 for each property to be 
tested.  
 
 
 
 
8 © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
9.3.2  Composition of the hydraulic road binder  
 
The composition of the hydraulic road binders shall meet the requirements specified in 7.4 and table 
3. 
 
Suitable procedures during production to ensure compliance with these requirements should be 
applied and documented. At least once per month the composition of the hydraulic road binder shall 
be checked by an appropriate method, using a spot sample taken at the point of release of the 
hydraulic road binder.  
 
Table 7 ― Limit values for single results  
 
Property     Limit values        
 
   Strength class        
 
    5 12.5  22.5 22.5 E  32.5 32.5 E  
 
Strength    7 day  - -  - 8.0 - 14.0  
 
Lower limit (N/mm2)            
28 day  3.5 10.0  20,0 20.0 30.0 30.0  
 
Sulphate content.  Upper  limit (%  5.01)         
 
SO3 by mass)              
 
Fineness    90 μm 17         
 
Upper limit  (% residue)          
 
          
 
Initial setting time     105         
 
Lower limit (min )             
 
            
 
Soundness     10         
 
Upper limit (mm)             
 
            
 
Clinker  content  (Subclasses  E  only)  18         
 
Lower limit (%)             
 
            
 1) A limit value of 8.0 % by mass of SO 3 is appropriate for hydraulic road binders containing burnt shale, calcareous fly  
 
ash or more than 80% of granulated blast furnace slag (see 7.3).        
 
Table 8 ― Minimum testing frequencies and statistical assessment procedure  
 
         
  
Property   
Number of samples   Statistical assessment by  
 
  Variables 1)  Attributes 2)  
 
Strength   1 per week     x      
 
Initial setting time   1 per week     x      
 
Fineness   1 per week        x   
 
Soundness   1 per week        x   
 
Sulphate content   1 per week        x   
 
Composition   1 per week        x   
 
1) If the data are not normally distributed, then the method of assessment may be decided on a case by case basis.   
 
2) If the number of samples is at least 2per week the assessment may be made by variables      
 
 
9.3.3  Required properties of the constituents of the hydraulic road binders  
 
The constituents of the hydraulic road binder shall meet the requirements specified in clause 6. 
Suitable procedures during production to ensure compliance with this requirement should be applied 
and documented.  
 
10 Marking, packaging, delivery, and storage  
 
10.1  Marking  
 
The hydraulic road binder shall be marked on the bag and on any certificate with the following particulars:  
 
(i) The manufacturer's name and/or trade mark  
 
 
 
 
 
 
© EAC 20 19 — All rights reserved  9 PUBLIC REVIEW DRAFTDEAS 981:2019  
 
(ii) The type of hydraulic road binder, e.g. Hydraulic road binder EAS 424 HRB 32,5 E or Hydraulic 
road binder EAS 424 HRB 22,5 etc depending on the particular hydraulic road binder, with clear 
marking to distinguish it from other types of hydraulic road binder,( refer to clause 8) 
 
(iii) Net weight in kilograms 
 
(iv) An indication of the date of packing preferably in figures for date, month, year, e.g. figures 02- 07-
2002 for the date of manufacture of second July 2002 
 
The number and date of this standard (see inside back cover for conditions for certification marking)  
 
10.2  Packaging  
 
The common packaging shall be paper bags holding 50 kg, 25kg, net weight or any other 
appropriate weight as stipulated in the Weight and Measures Act.  
 
10.2.1 The material shall be weather resistant and constructed to assure safe delivery of the  
contents.  
 
10.2.2 The container shall be sufficiently strong so as to withstand transportation and to permit  
storage in tiers at least 3 metres high without damage to the container or the contents.  
 
10.2.3 Products may be shipped in containers agreed upon between the manufacturer and the  
purchaser. 
 
10.3  Delivery 
 
The hydraulic road binder when supplied in bags shall be packed in bags of 50 kg, or 25 kg, 10 kg 
net weight or any other appropriate weight as stipulated in the Weight and Measures Act.  
 
10.4  Packages  
 
Packages varying by more than 3 % from the specified mass may be rejected; and if the average 
mass of packages in any shipment, as shown by weighing 50 packages taken at random, is les than 
that specified, the entire shipment may be rejected.  
 
10.5  Bulk Deliveries  
 
For hydraulic road binder in bulk, the following information shall be included in the delivery notes:  
 
a) The manufacturer's name 
 
b) The type of hydraulic road binder, Hydraulic road binder HRB 32.5 E or Hydraulic road binder 
HRB 22.5 etc as indicated in clause 8 (refer to clause 8). 
 
c) Net weight of the bulk cement in kilograms 
 
d) Date and time of delivery 
 
e) Customer, order and consignee 
 
f) Registration number of the delivery vehicle 
 
10.6  Storage  
 
The hydraulic road binder shall be stored in a dry cool place in such a manner as to permit easy 
access for proper inspection and identification, and in a suitable waterproof building to protect the 
hydraulic road binder from dampness and to minimize warehouse deterioration.  
 
 
 
 
10 © EAC 20 19 — All rights reserved  PUBLIC REVIEW DRAFTDEAS 981:2019  
 
 
Annex A (informative)  Bibliography  
 
[1] EAS 18- 1 Cement  ― Part 1: Composition, specification and conformity criteria for common  
cements  
 
[2] EAS 18- 2 Cement  ― Part 2: Conformity evaluation  
 
[5] EAS 148- 1 Methods of testing cement  ― Part 1: Determination of strength  
 
[6] EAS 148- 2 Methods of testing cement  ― Part 2: Chemical analysis of cement  
 
[7] EAS 148- 3 Methods of testing cement  ― Part 3: Determination of setting time and soundness  
 
[8] EAS 148- 5 Methods of testing cement  ― Part 5: Pozzolanicity test for pozzolanic cements  
 
[9] EAS 148- 6 Methods of testing cement  ― Part 6: Determination of fineness  
 
[10] EAS 148- 7 Methods of testing cement  ― Part 7: Methods of taking and preparing samples of  
cement  
 
[11] EAS 148- 4 Methods of testing cement  ― Part 4: Determination of the chloride, carbon dioxide  
and alkali content of cement  
 
[12] DD ENV 13282:2000, Hydraulic road binders  ― Composition, specification and conformity  
criteria  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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