Influence of Some Additives on the Properties of OPC Solidified Sandy Silt

The ordinary Portland cement (OPC)-based solidification process is used extensively to reinforce soils due its available and good bonding properties. Alternative products are in cementitious materials enhance the strength reduce OPC consumption. In this study, effect of additive type mass fraction on microstructure mechanical properties solidified sandy silt investigated. There four types additives (gypsum, lime, clay particles, fly ash) at fractions 2, 3, 4% that considered order study their (unconfined compression, indirect tensile, flexural strength, compressive resilient modulus) 7, 14, 28, 60, 90 days. optimal contents gypsum, ash determined be 2%, 4%, respectively. Such improvement additive-modified formation crystalline compound or gradation composition via field emission scanning electron X-ray diffraction analysis.