Supply Type :
Cement & Concrete Raw Materials Item GST Rate Ordinary Portland Cement (OPC) 18% Portland Pozzolana Cement (PPC) 18% White Cement 18% Clinker 18% Natural Sand / River Sand 5% Aggregates / Grit / Stone Dust 5% Manufactured Sand (M-Sand) 5% Ready Mix Concrete & Fresh Concrete Item GST...
Chemical Name Formula Abbreviation Purpose/Property Tricalcium Silicate 3CaO·SiO₂ C₃S Early strength development Dicalcium Silicate 2CaO·SiO₂ C₂S Later strength development Tricalcium Aluminate 3CaO·Al₂O₃ C₃A Rapid reaction, contributes to heat of hydration Tetracalcium Aluminoferrite 4CaO·Al₂O₃·Fe₂O₃ C₄AF Color + minor strength gain Calcium Hydroxide Ca(OH)₂ Hydration byproduct, affects durability Gypsum (Calcium Sulfate)...
1980 Design Aids for Reinforced Concrete to IS 456 : 1978 IS 383 : 1970 Specification for coarse and fine aggregates from natural sources for concrete IS 432 : Part 1 : 1982 Specification for mild steel and medium tensile steel bars and hard-drawn steel wire for concrete reinforcement: Part...
Component materials required for cement making - Limestone, shale, slate, clay, chalk - Lime 60%), silica 20%), alumina 10%) Others : Iron oxide, magnesium oxide, sulphur trioxide, alkalies, carbon-dioxide Manufacturing process - Wet and dw methods - In both methods raw materials are homogenized by casting, grinding and blending...
