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Samples in periodicals archive:
Within the construction sector, Purebase will provide Supplementary Cementitious Materials (SCM) that may be used in large infrastructure development projects for government, commercial industries and residential buildings.
A number of baselines will be established at national and regional levels, including those reflecting mix designs with 100 percent portland cement and low-to high-volume supplementary cementitious materials.
From findings, it is found that the workability of cementitious grouts was influenced by various factors such as the water/binder ratio, dosage of SP, type of SP used, different brand of SP, different types of cement and use of supplementary cementitious material.
Use of supplementary cementitious materials (SCMs) as a replacement for cement can improve the performance of concrete, reduce environmental impacts, and lower the cost.
The primary supplier of concrete for the Freedom Tower, Quadrozzi Concrete, chose the iCrete brand of concrete to use with supplementary cementitious materials such as fly ash to come up with a high compression, high performance concrete mix.
For example, if some durability aspect of concrete containing CCA is reduced then it can be adjusted by the increased use of supplementary cementitious materials that may not result in any cost increase.
The two main substitutes for portland cement or supplementary cementitious materials are slag cement and fly-ash, Parries said.
Engineered cements from the raw materials to finished products are only possible given an improved understanding of the structure and properties of clinker phases, the influences of the calcium sulfate forms, and the effects of supplementary cementitious materials.