Porous Surface Mastic Asphalt CoursePOSMAC‫طﺮق اﻷﺳﻔﻠﺖ ذي اﻟﺴﻄﺢ‬‫اﻟﻤﻄﺎطﻲ اﻻﻣﺘﺼﺎﺻﻲ‬Overview
Porous Surface Mastic Asphalt Course (POSMAC) is a porous asphalt mixture with goodwater impermeability function at the bottom of mixture. Porous asphalt mix is paved using Self
Priming Asphalt Finisher with high concentrated modified asphalt emulsion. Thus, it constructs
highly durable porous asphalt pavement with good water impermeability at the bottom.

ForwardGeneral pavement

Porous asphalt

Porous asphalt

POSMACdrainage layer

drainage layer

Ex actingwheel loaddrainage layer

temperature
ponding
spotadhesion

existing pavement

Impermeable layer

Impermeable layer

Single layer build

Dual layer build

Improved and added function
drainage function
in upper portion of mix
impermeability function
due to emulsion infiltration
in lower portion of mix

yen/m2surface course

functions to suppress
reflective cracking
enhanced adhesionbinder course

binder course

3,500
3,000
2,500
2,000
1,500
1,000
500
0

surface course
binder course
millingreclaimed(RAP)

Dual layer

POSMAC

Amount of construction per day620m2

TOA ROAD CORPORATION
https://www.toadoro.co.jp/en/

1,050m2

Accelerated Quick Setting Emulsified Asphalt
Tack Fine SQ‫اﻷﺳﻔﻠﺖ اﻟﻤﺮﻛﺐ‬‫اﻟﺴﺮﻳﻊ اﻟﺘﺼﻠﺐ‬Overview
Tack Fine SQ is a high-performance tack coat which applies both modified asphalt emulsion
and decomposition accelerating agent simultaneously with special distributor.
It has excellent rapid setting and trackless to tire, while keeping interlayer adhesion
performance.

ForwardEmulsion spraying nozzle

Set accelerating agent
spraying nozzle

Undecomposed
Asphalt
emulsion

Decomposed asphalt
emulsion

Neutral decomposition accelerating agent is usedExisting pavement

5 minutes after applying asphalt emulsion （Surface Temp: 5℃）

Which is BETTER？
Asphalt emulsion only

Shorten working time

Sets in 5 minutes

Asphalt emulsion
with decomposition
accelerating agent

Trackless to tires

Decomposition (setting)dispersion

aggregation

membrane

TOA ROAD CORPORATION
https://www.toadoro.co.jp/en/60℃

Repair Materials for Pavements
Road Crack Series‫ﻣﻮاد إﺻﻼح اﻟﻄﺮق اﻟﻤﻌﺒﺪة‬‫ﺳﻠﺴﻠﺔ ﺗﺸﻘﻘﺎت اﻟﻄﺮق‬Overview
Road Crack Series is repair materials for cracking on asphalt pavement/joint on concrete
pavement. Our product line-ups are asphalt emulsion/hot asphalt injection and fabric. It
prevents water permeation from cracking or joint.
Crack Sealer
Mechanisms of cracking in pavement

Cold Sealer
2 types
360g Bottle type18kg Bottle type

Items
Reaction
Workability
Curing time
Width of crack
Cost ratio

Hot Sealer
RC Sealer
Using a hot kettle
Very Short
10 mm <1Cold Sealer
RC Mente
ChemicalGood
10-30min.
< 10 mm
12Hot Sealer
15 kg / box
2.5 kg ×6 piece

Fabric Interlayer: RC mesh GM
Mechanisms of reflective cracking

Reflective crack resistance

Reflective Crack Resistance

10Configuration

TOA ROAD CORPORATION
https://www.toadoro.co.jp/en/

8Times[Temp.25°C]

8.864210

Reference

Fabric Interlayer

High Stability Asphalt ConcreteHS Ascon‫أﺳﻤﻨﺖ أﺳﻔﻠﺘﻲ ﻋﺎﻟﻲ اﻻﺳﺘﻘﺮار‬Overview
HS Binder is consisted of Polymer Modified Asphalt (HS Asphalt) and thermoplastic resin(HS additive). HS Asphalt is supplied like conventional asphalt. HS additive is put into mixer ofasphalt plant directly. Then, HS Asphalt and HS additive are mixed in the asphalt mixture andbecome HS binder.
The durability of HS Ascon using HS Binder exceeds that of conventional polymer modifiedasphalt mixture.
Characteristics

Rutting Resistance High durability
 Oil resistance Water resistance Easy Construction
Application areas

Dynamic Stability passes/mm

70000
60000
50000
40000
30000
20000
10000
0

PolmerModified
Asphalt

Parking

Epoxy Asphalt Semi-flexible

HS Ascon

Dynamic Stability of HS Ascon is remarkably
high compared with polymer modified
asphalt. Its value is equivalent to the epoxy
asphalt mixture or semi-rigid mixture.
Oil ResistanceDistribution center

HS Ascon

Rotary at station

Conventional

Test Conditions: Kerosene : 2L/m2
 Loading equipment : Forklift (weight 3.4 t)
 Number of times : 20 reciprocating

Container yard
TOA ROAD CORPORATION
https://www.toadoro.co.jp/en/

motions