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.

Recommended uses

  1. 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.
  2. Cement: High grade, sulphate and chloride resistant, as well as low and very low heat, PC/fly ash blended cements.
  3. Grout: Specialised micro-grouts for crack sealing in repair works

Recommended Proportions

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 MPa8-10
Medium High Strength Concrete (40-70 Mpa) 5-10
Pre-Stressed Pre-cast Concrete8-10
High Performance Concrete5-10
High Grade Portland Pozzolana Cement5-10
Mortars for Concrete Repair20
Micro-Grouts for Crack Sealing10-25

Typical concrete performance with 10% DP 100 w.r.t. PC Concrete

Water DemandReduced, 8 -10%
StabilityImproved Greatly
Plastic ShrinkageReduced
Plastic settlementReduced
Setting TimeIncreased 15 – 45 min
Heat of Hydration Reduced Greatly
Long Term StrengthIncreased 25 – 30%
28 day StrengthIncreased 15- 20%
Early Strength (7 days)Similar
Required CuringSimilar
PermeationReduced 2 – 5 times
Sulphate AttackReduced Substantially
Chlorine PenetrationReduced Substantially
ASR Risk Minimised