DP 100 – For high performance concrete
For high performance concrete
DP 100 is a very high efficiency pozzolanic material for use as a component of cement with Portland clinker (i.e. as a partial replacement of Portland cement) to yield high performance concrete. It is produced by careful selection, processing and testing of fly ash resulting from the combustion of coal used at electricity generating power stations. It is a top of the range product in terms of all the International Standard specifications for fly ash and is subjected to stringent quality control.
- Concrete: General purpose, plain and reinforced structural concrete, with 28 day strength exceeding 70MPa yielding high early strengths as well. Special purpose, such as pre-stressed, pre-cast and high performance concrete for its rheological, engineering permeation and durability properties.
- Cement: High grade, sulphate and chloride resistant, as well as low and very low heat, PC/fly ash blended cements.
- Grout: Specialised micro-grouts for crack sealing in repair works
The proportions of DP 100 and the other mix constituents should be determined by an appropriate mix design method and testing. The proportion of DP 100 used would depend on the required concrete properties, type of PC and admixture used. The following figures are indicative.
Typical Dosage of DP 100
|Product||% of AD 100 from total binder content|
|High Strength Concrete > 70 MPa||8-10|
|Medium High Strength Concrete (40-70 Mpa)||5-10|
|Pre-Stressed Pre-cast Concrete||8-10|
|High Performance Concrete||5-10|
|High Grade Portland Pozzolana Cement||5-10|
|Mortars for Concrete Repair||20|
|Micro-Grouts for Crack Sealing||10-25|
Typical concrete performance with 10% DP 100 w.r.t. PC Concrete
|Water Demand||Reduced, 8 -10%||–|
|Setting Time||Increased 15 – 45 min||–|
|Heat of Hydration||Reduced Greatly|
|Long Term Strength||Increased 25 – 30%||–|
|28 day Strength||Increased 15- 20%||–|
|Early Strength (7 days)||Similar|
|Permeation||Reduced 2 – 5 times|
|Sulphate Attack||Reduced Substantially|
|Chlorine Penetration||Reduced Substantially|