96M01/03/08

S703-96M.doc

  -----------------------------------------------------------------------
  Use on all projects with aggregate for concrete, subbase, base, asphalt
  mix, and asphalt surface treatments is specified.

  -----------------------------------------------------------------------

**Section 703. -- AGGREGATE**

  -----------------------------------------------------------------------
  Include Subsection 703.02 for all concrete.

  -----------------------------------------------------------------------

**703.02 Coarse Aggregate for Concrete.** [Delete the Subsection and
substitute the following:]{.underline}

**703.02 Coarse Aggregate for Concrete.** Conform to AASHTO M 80 class A
including the restriction on reactive materials, except as amended or
supplemented by the following:

**(a)** Los Angeles abrasion, AASHTO T 96 40% max.

**(b)** Adherent coating, ASTM D 5711 1.0% max.

**(c)** Grading, AASHTO M 43 All sizes, except Nos. 8, 89, 9 or 10

For bridge decks or surface courses, do not use aggregate known to
polish or carbonate aggregates containing less than 25 percent by mass
of insoluble residue as determined by ASTM D 3042.

For lightweight coarse aggregate, conform to AASHTO M 195.

[Add the following:]{.underline}

In addition to the requirements under **703.01** and **703.02** the
following will also apply to fine and coarse aggregate for concrete.

**Fine and Coarse Aggregate for Concrete.**

Alkali reactivity of aggregates (Mortar bar method), ASTM C 1260 0.10%
max.

Aggregates tested by ASTM C 1260, which exhibit mortar bar expansions
less than 0.10 % at 16 days after casting, are considered innocuous and
may be used.

Aggregates tested by ASTM C 1260 which exhibit mortar bar expansions
between 0.10 and 0.20 % at 16 days after casting may be used if
acceptable supplemental information is submitted which confirms that
mortar bar expansions are not caused by alkali-silica reactions.
Acceptable supplemental information includes:

> **•** A report of petrographic examination of the aggregate by ASTM C
> 295 performed within one year from the time of submittal which
> contains quantifiable data and conclusions verifying that the
> aggregate is not potentially deleteriously reactive with cement
>
> ***or***
>
> **•** A report of petrographic examination of the ASTM C 1260 mortar
> bar samples by ASTM C 856 which contains quantifiable data and
> conclusions verifying that the aggregate is not potentially
> deleteriously reactive with cement and that the mortar bar reaction
> products are not due to alkali-silica reaction.

Aggregates tested by ASTM C 1260 which exhibit mortar bar expansions
more than 0.20 % at 16 days after casting ***or*** aggregates exhibiting
expansions between 0.10 and 0.20 % at 16 days after casting that have
been found to be potentially deleteriously reactive by acceptable
supplemental information may be used if additional supplemental
information is submitted which confirms that effective mitigation
measures utilizing supplementary cementitious materials have been used
in the concrete mix design. Acceptable supplemental information
includes:

> **•** Data and test results by ASTM C 1567 which confirm that concrete
> mix design combinations of cement, fly ash, silica fume and/or ground
> iron blast furnace slag exhibit expansions less than 0.10 % at 16 days
> after casting. Lithium compounds shall not be used.

Testing of the reactivity of aggregates by ASTM C 1293 may be
substituted for ASTM C 1260. In such a case, the average concrete prism
expansion must be less than 0.04 % at one year. Aggregates exhibiting
mortar bar expansions more than 0.04 % at one year may be used if
additional supplemental information is submitted which confirms that
effective mitigation measures utilizing supplementary cementitious
materials have been used in the concrete mix design. Acceptable
supplemental information includes:

> **•** Data and test results by ASTM C 1567 which confirm that concrete
> mix design combinations of cement, fly ash, silica fume and/or ground
> iron blast furnace slag exhibit expansions less than 0.10 % at 16 days
> after casting. Lithium compounds shall not be used.

  -----------------------------------------------------------------------
  Include Subsection 703.05 when specifying **subbase or base aggregate
  using Section 301**. Include Section 301 and the following:

  -----------------------------------------------------------------------

**703.05 Subbase, Base and Surface Course Aggregate.**

**(a) General.** [Delete lines (3), (4), (5), and (6) and substitute the
following:]{.underline}

> **(3)** Fractured faces, one or more, ASTM D 5821 50% min.
>
> **(4)** Free from organic matter and lumps or balls of clay

**(b) Subbase or base aggregate.**

> **(1) Gradation.** [Delete Table 703-2 and substitute the
> following:]{.underline}

**Table 703-2**

Target Value Range for Subbase and Base Gradation

+-----------+----------+-----------+-----------+-----------+-----------+
| **Sieve   | *        |           |           |           |           |
| Size**    | *Percent |           |           |           |           |
|           | by Mass  |           |           |           |           |
|           | Passing  |           |           |           |           |
|           | De       |           |           |           |           |
|           | signated |           |           |           |           |
|           | Sieve    |           |           |           |           |
|           | (AASHTO  |           |           |           |           |
|           | T27 and  |           |           |           |           |
|           | T 11)**  |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
|           | *        |           |           |           |           |
|           | *Grading |           |           |           |           |
|           | Desig    |           |           |           |           |
|           | nation** |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
|           | **A**    | **B**     | **C**     | **D**     | **E**     |
|           |          |           |           |           |           |
|           | **(Su    | **(S      | *         | *         | *         |
|           | bbase)** | ubbase)** | *(Base)** | *(Base)** | *(Base)** |
+-----------+----------+-----------+-----------+-----------+-----------+
| 63.0 mm   | 100      |           |           |           |           |
|           | ^(1)^    |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 50.0 mm   | 97-100   | 100 ^(1)^ | 100 ^(1)^ |           |           |
|           | ^(1)^    |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 37.5 mm   |          | 97-100    |           |           |           |
|           |          | ^(1)^     |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 31.5 mm   |          |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 25.0 mm   | 65-79    |           | 80-100    | 100 ^(1)^ |           |
|           | (6)      |           | (6)       |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 19.0 mm   |          |           | 64-94 (6) | 86-100    | 100 ^(1)^ |
|           |          |           |           | (6)       |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 12.5 mm   | 45-59    |           |           |           |           |
|           | (7)      |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 9.5 mm    |          |           | 40-69 (6) | 51-82 (6) | 62-90 (6) |
+-----------+----------+-----------+-----------+-----------+-----------+
| 4.75 mm   | 28-42    | 40-60 (8) | 31-54 (6) | 36-64 (6) | 36-74 (6) |
|           | (6)      |           |           |           |           |
+-----------+----------+-----------+-----------+-----------+-----------+
| 425µm     | 9-17 (4) |           |           | 12-26 (4) | 12-26 (4) |
+-----------+----------+-----------+-----------+-----------+-----------+
| 75µm      | 4.0-8.0  | 4.0-12.0  | 4.0-7.0   | 4.0-7.0   | 4.0-7.0   |
|           | (3)      | (4)       | (3)       | (3)       | (3)       |
+-----------+----------+-----------+-----------+-----------+-----------+

> ^(1)^ Statistical procedures do not apply.
>
> ( ) Allowable deviations (+/-) from the target values

  -----------------------------------------------------------------------
  Include Subsection 703.02(c) when specifying **surface course aggregate
  using Section 301**. Include Section 301 and the following:

  -----------------------------------------------------------------------

**(c) Surface course aggregate.** [Delete the text including Table 703-3
and substitute the following:]{.underline}

Furnish hard, durable particles or fragments of crushed stone, crushed
slag, or crushed gravel conforming to the following:

> **(1)** Los Angeles abrasion, AASHTO T 96 50% max.
>
> **(2)** Fractured faces, one or more, ASTM D 5821 50% min.
>
> **(3)** Free from organic matter and lumps or balls of clay
>
> **(4)** Liquid Limit, AASHTO T 89 35 max.
>
> **(5)** Dust ratio: 2/3 max.
>
> **(6)** Gradation and plasticity index, AASHTO T 90 Table 703-3

Do not use material that breaks up when alternately frozen and thawed or
wetted and dried.

Obtain the aggregate gradation by crushing, screening, and blending
processes as necessary. Fine aggregate, material passing the 4.75 mm
sieve, will consist of natural or crushed sand and fine mineral
particles.

Do not furnish material that contains asbestos fibers.

**Table 703-3**

**Target Value Ranges for**

Surface Course Gradation and Plasticity Index

+-----------------------------------+-----------------------------------+
| **Sieve Size**                    | **Percent by Mass Passing**       |
|                                   |                                   |
|                                   | **Designated Sieve**              |
|                                   |                                   |
|                                   | **(AASHTO T 27 and T 11)**        |
+-----------------------------------+-----------------------------------+
| 19.0 mm                           | 100 ^(1)^                         |
+-----------------------------------+-----------------------------------+
| 4.75 mm                           | 41-71(7)                          |
+-----------------------------------+-----------------------------------+
| 425 µm                            | \*(5)                             |
+-----------------------------------+-----------------------------------+
| 75 µm                             | 9-16 (4)                          |
+-----------------------------------+-----------------------------------+
| Plasticity Index (PI)             | 8 (4)                             |
+-----------------------------------+-----------------------------------+

> ^(1)^ Statistical procedures do not apply.
>
> (\*) Submit target values for applicable sieves
>
> ( ) Allowable deviations (+/-) from the target values

  -----------------------------------------------------------------------
  Include Subsection 703.06 when specifying **surface course aggregate
  using Section 308**. Include Section 308 and the following:

  -----------------------------------------------------------------------

**703.06 Crushed Aggregate.** [Add the following to the end of the
paragraph:]{.underline}

When aggregate is used as a surface course, furnish an aggregate with a
Plasticity Index conforming to Table 703-3a.

**Table 703-3a**

Surface Course Gradation and Plasticity Index

+-----------------------------------+-----------------------------------+
| **Sieve Size**                    | **Percent by Mass Passing**       |
|                                   |                                   |
|                                   | **Designated Sieve**              |
|                                   |                                   |
|                                   | **(AASHTO T 27 and T 11)**        |
+-----------------------------------+-----------------------------------+
| 19.0 mm                           | 100                               |
+-----------------------------------+-----------------------------------+
| 4.75 mm                           | 41-71                             |
+-----------------------------------+-----------------------------------+
| 425 µm                            | \*                                |
+-----------------------------------+-----------------------------------+
| 75 µm                             | 5-20                              |
+-----------------------------------+-----------------------------------+
| Plasticity Index (PI)             | 4-12                              |
+-----------------------------------+-----------------------------------+

> (\*) Submit target values for applicable sieves

  -----------------------------------------------------------------------
  Include reference to Table 703-6 when aggregate for emulsified asphalt
  pavement is specified.

  -----------------------------------------------------------------------

**Table 703-6 -Target Value Ranges for Open Graded Emulsified Asphalt
Pavement Aggregate Gradation.** [In the first column, delete the
reference to sieve size 4.25 mm and substitute the sieve size 4.75
mm.]{.underline}

  -----------------------------------------------------------------------
  Include Subsection 703.07 when Hot Asphalt Concrete Pavement is
  specified using Sections 401 (**NOT Superpave**). Include Section 401
  for Hveem or Marshall mix and the following:

  -----------------------------------------------------------------------

**703.07 Hot Asphalt Concrete Pavement Aggregate.**

**(a) Coarse aggregate (retained on a 4.75 mm sieve).** [Delete lines
(3) and (4) and substitute the following:]{.underline}

> **(3)** Fractured faces, one or more, ASTM D 5821 75% min.
>
> **(4)** Liquid limit, AASHTO T 89 25 max.
>
> **(5)** Adherent coating, FLH T 512 1% max.

**(b) Fine aggregate (passing a 4.75 mm sieve).** [Delete lines (1) and
(2) and substitute the following:]{.underline}

> **(1)** Liquid Limit, AASHTO T 89 25 max.

  -----------------------------------------------------------------------
  Include Subsection 703.08 when an open-graded friction course is
  specified using Section 404.

  -----------------------------------------------------------------------

**703.08 Open-Graded Asphalt Friction Course Aggregate.** [Delete lines
(a), (b), and (c) and substitute the following:]{.underline}

**(a)** Fractured faces, two or more, ASTM D 5821 75% min.

**(b)** Fractured faces, one or more, ASTM D 5821 90% min.

  -----------------------------------------------------------------------
  Include Subsection 703.09 when emulsified asphalt pavement is
  specified.

  -----------------------------------------------------------------------

**703.09 Emulsified Asphalt Pavement Aggregate.**

**(a) Coarse aggregate.** [Delete lines (3) and (4) and substitute the
following:]{.underline}

> **(3)** Fractured faces, one or more, ASTM D 5821 75% min.

**(b) Fine aggregate.** [Delete lines (1) and (2) and substitute the
following:]{.underline}

> **(1)** Liquid Limit, AASHTO T 89 25 max.

**Table 703-6 -Target Value Ranges for Open Graded Emulsified Asphalt
Pavement Aggregate Gradation.** [In the first column, delete the
reference to sieve size 4.25 mm and substitute the sieve size 4.75
mm.]{.underline}

  -----------------------------------------------------------------------
  Include Subsection 703.10 when aggregates for asphalt surface
  treatments are specified.

  -----------------------------------------------------------------------

**703.10 Asphalt Surface Treatment Aggregate.** [Delete lines (d)
through (l) and substitute the following:]{.underline}

**(d)** Fractured faces, one or more, ASTM D 5821 90% min.

**(e)** Flat and elongated particles, 1:3 ratio. +9.5 mm sieve, 10% max.

calculated by mass, weighted average, ASTM D4791

**(f)** Clay lumps and friable particles, AASHTO T 112 1.0% max.

**(g)** Adherent coating, ASTM D 5711 0.5% max.

**Table 703-7.** [Delete Table 703-7 and substitute the
following:]{.underline}

**Table 703-7**

**Target Value Ranges for**

Single and Multiple Course Surface Treatment Aggregate Gradation

+-------+----------+---------+---------+----------+---------+---------+
| **Si  | *        |         |         |          |         |         |
| eve** | *Percent |         |         |          |         |         |
|       | by Mass  |         |         |          |         |         |
| **S   | Passing  |         |         |          |         |         |
| ize** | De       |         |         |          |         |         |
|       | signated |         |         |          |         |         |
|       | Sieve**  |         |         |          |         |         |
|       |          |         |         |          |         |         |
|       | *        |         |         |          |         |         |
|       | *(AASHTO |         |         |          |         |         |
|       | T 27 & T |         |         |          |         |         |
|       | 11)**    |         |         |          |         |         |
+-------+----------+---------+---------+----------+---------+---------+
|       | *        |         |         |          |         |         |
|       | *Grading |         |         |          |         |         |
|       | Desig    |         |         |          |         |         |
|       | nation** |         |         |          |         |         |
+-------+----------+---------+---------+----------+---------+---------+
|       | **A**    | **B**   | **C**   | **D**    | **E**   | **F**   |
+-------+----------+---------+---------+----------+---------+---------+
| 37.5  | 100      |         |         |          |         |         |
| mm    | ^(1)^    |         |         |          |         |         |
+-------+----------+---------+---------+----------+---------+---------+
| 25.0  | 90 --    | 100     |         |          |         |         |
| mm    | 100 (3)  | ^(1)^   |         |          |         |         |
+-------+----------+---------+---------+----------+---------+---------+
| 19.0  | 0 -- 35  | 90 --   | 100     |          |         |         |
| mm    | (5)      | 100 (3) | ^(1)^   |          |         |         |
+-------+----------+---------+---------+----------+---------+---------+
| 12.5  | 0 -- 8   | 0 -- 35 | 90 --   | 100      |         |         |
| mm    | (3)      | (5)     | 100 (3) | ^(1)^    |         |         |
+-------+----------+---------+---------+----------+---------+---------+
| 9.5   | \-\--    | 0 -- 12 | 0 -- 35 | 85 --    | 100     | 100     |
| mm    |          | (3)     | (5)     | 100 (3)  | ^(1)^   | ^(1)^   |
+-------+----------+---------+---------+----------+---------+---------+
| 4.75  | \-\--    |         | 0 -- 12 | 0 -- 35  | 85 --   | 85 --   |
| mm    |          |         | (3)     | (5)      | 100 (3) | 100     |
|       |          |         |         |          |         | ^(1)^   |
+-------+----------+---------+---------+----------+---------+---------+
| 2.36  | \-\--    |         |         | 0 -- 8   | 0 -- 23 | \-\--   |
| mm    |          |         |         | (3)      | (4)     |         |
+-------+----------+---------+---------+----------+---------+---------+
| 75 μm | 0 -- ½   | 0 -- ½  | 0 -- ½  | 0 -- ½   | 0 -- ½  | 0 - 10  |
|       | (½)      | (½)     | (½)     | (½)      | (½)     | ^(1)^   |
+-------+----------+---------+---------+----------+---------+---------+

> ^(1)^ Statistical procedures do not apply.
>
> ( ) The value in parentheses is the allowable deviation (±) from the
> target value.

  -----------------------------------------------------------------------
  Include Subsection 703.17 when Superpave hot asphalt concrete is
  specified using Section 401 (**Superpave**). Include Section 401 and
  the following (including Table 703-14).

  -----------------------------------------------------------------------

**703.17 Superpave Hot Asphalt Concrete Aggregate.** [Delete the text
and substitute the following:]{.underline}

Furnish hard, durable particles or fragments of crushed stone, crushed
slag, or crushed gravel conforming to the following:

**(a)** Los Angeles abrasion, AASTHO T 96 35% max.

**(b)** Sodium sulfate soundness loss of coarse and 12% max.

fine aggregate, 5 cycles, AASHTO T 104

**(c)** Fractured faces, one or more, ASTM D 5821 90% min.

**(d)** Fine aggregate angularity, AASHTO T 304, method A 40% min.

**(e)** Flat and elongated particles, 1:5 ratio. +9.5 mm sieve, 10% max.

calculated by mass, weighted average, ASTM D4791

**(f)** Sand equivalent AASTHO T 176, referee method 45 min.

**(g)** Gradation. Size , grade, and combine the aggregate fractions inn
the mix proportions that result in a composite blend between the control
points for the appropriate nominal maximum size aggregate in Table
703-14. The nominal maximum size is one size greater than the first
sieve to retain more than 10 percent of the combine aggregate. Test
according to AASTHO T 11 and T 27.

**Table 703-14**

Superpave Gradation and Target Value Range

+-------------------------+---------------------+----------------------+
| **Sieve Size**          | **Percent by Mass   |                      |
|                         | Passing**           |                      |
|                         |                     |                      |
|                         | **Designated        |                      |
|                         | Sieve**             |                      |
+-------------------------+---------------------+----------------------+
|                         | **Grading           |                      |
|                         | Designation**       |                      |
+-------------------------+---------------------+----------------------+
|                         | **19.0 mm ^(1)^**   | **12.5mm ^(1)^**     |
+-------------------------+---------------------+----------------------+
| 25.0 mm                 | 100                 |                      |
+-------------------------+---------------------+----------------------+
| 19.0 mm                 | 90-100              | 100                  |
+-------------------------+---------------------+----------------------+
| 12.5 mm                 | 90 max              | 90-100               |
+-------------------------+---------------------+----------------------+
| 9.5 mm                  |                     | 90 max               |
+-------------------------+---------------------+----------------------+
| 4.75 mm                 | \*(6)               | \*(6)                |
+-------------------------+---------------------+----------------------+
| 2.36 mm                 | 23-49 (6)           | 28-58 (6)            |
+-------------------------+---------------------+----------------------+
| 1.18 mm                 |                     |                      |
+-------------------------+---------------------+----------------------+
| 600µm                   | \*(4)               | \*(4)                |
+-------------------------+---------------------+----------------------+
| 300µm                   | \*(3)               | \*(3)                |
+-------------------------+---------------------+----------------------+
| 150µm                   |                     |                      |
+-------------------------+---------------------+----------------------+
| 75µm                    | 2-8 (2)             | 2-10 (2)             |
+-------------------------+---------------------+----------------------+

> ^(1)^ Submit target values for applicable sieves
>
> (\*) Submit target values for applicable sieves
>
> ( ) Allowable deviations (+/-) from the target values

  -----------------------------------------------------------------------
  Include Subsection 703.18 when Shotcrete is specified. Include Section
  566 and the following:

  -----------------------------------------------------------------------

**703.18 Shotcrete Aggregate.** For fine aggregate, furnish rounded
particles conforming to Subsection 703.01. For coarse aggregate, conform
to AASHTO M 80 class B, except as amended or supplemented by the
following:

**(a)** Los Angeles abrasion, AASHTO T 96 40% max.

**(b)** Adherent coating, FLH T 512 1.0% max.

Combine the aggregates to meet the designated gradation in Table 703-16.

**Table 703-16**

ShotCrete Gradation Limits for Combined Aggregates

+----------------+----------------+-----------------+-----------------+
| **Sieve Size** | **Percent by   |                 |                 |
|                | Mass Passing   |                 |                 |
|                | Designated     |                 |                 |
|                | Sieve**        |                 |                 |
|                |                |                 |                 |
|                | **(AASHTO T    |                 |                 |
|                | 27)**          |                 |                 |
+----------------+----------------+-----------------+-----------------+
|                | **Grading      |                 |                 |
|                | Designation**  |                 |                 |
+----------------+----------------+-----------------+-----------------+
|                | **A**          | **B**           | **C**           |
+----------------+----------------+-----------------+-----------------+
| 19.0 mm        |                |                 | 100             |
+----------------+----------------+-----------------+-----------------+
| 12.5 mm        |                | 100             | 80-95           |
+----------------+----------------+-----------------+-----------------+
| 9.5 mm         | 100            | 90-100          | 70-90           |
+----------------+----------------+-----------------+-----------------+
| 4.75 mm        | 95-100         | 70-85           | 50-70           |
+----------------+----------------+-----------------+-----------------+
| 2.36 mm        | 80-100         | 50-70           | 35-55           |
+----------------+----------------+-----------------+-----------------+
| 1.18 mm        | 50-85          | 35-55           | 20-40           |
+----------------+----------------+-----------------+-----------------+
| 600 µm         | 25-60          | 20-35           | 10-30           |
+----------------+----------------+-----------------+-----------------+
| 300 µm         | 10-30          | 8-20            | 5-17            |
+----------------+----------------+-----------------+-----------------+
| 150 µm         | 2-10           | 2-10            | 2-10            |
+----------------+----------------+-----------------+-----------------+