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What is the ratio of sand gravel and white Portland cement?
What I usually use is: 1 Part Portland Cement 2 Parts Medium to Coarse Sand 3 Parts Gravel or Rock
Why use kerosene in the test specific gravity of cement?
Kerosene, a petroleum product will not interact chemically with Portland cement - water will.
How can you make portland cement as quick setting and water resistance cement?
Please note that a key correction in terminology is essential before your question can be answered: use the word "concrete" instead of "cement." The answer is to modify your mix (i.e. Portland cement, sand, gravel, and water) by using hydraulic cement to repace part of the Portland cement. The higher the amount of hydraulic cement you add, the quicker the setting time and the impermeability. However, hydraulic cement sets so quickly that you have limit the amount of total mix so as to be able to pour it and form it before it sets.
What is difference between portland and hydraulic cement?
Am not a 100% sure about this answer but yes it does hold some water in it, the portland cement majorly has its use in well aerated places i.e its mainly used for construction above sea or simply iits used where cement can dry in air but the hydraulic has properties enabling it to harden properly under water. and thats where its mostly used or in places where water really comes around.
What is the difference in geopolymer concrete mix design from mix design of ordinary portland cement?
the main difference is we will not at all use the ordinary port land cement in the geo polymer concrete mix simply we will use fly ash as a binder material and a chemicals such as sodium silicate and sodium hydroxide are used
