TY - JOUR ID - 4842 TI - Experimental investigation of the effects of pozzolan and slag addition on mechanical properties of self-compacting cementitious composites JO - Amirkabir Journal of Civil Engineering JA - CEEJ LA - en SN - 2588-297X AU - Bastami, Aref AU - Omidinasab, Fereydoon AU - Dalvandc, Ahmad AD - AD - Civil, engineering, lorestan university, khorramabad, iran Y1 - 2022 PY - 2022 VL - 54 IS - 10 SP - 3943 EP - 3966 KW - Self-compacting cementitious composites KW - Micro Silica Fume KW - fly ash KW - GGBFS KW - Mechanical Properties DO - 10.22060/ceej.2022.20906.7569 N2 - The use of concrete in the industry is expanding. Self-compacting composite concrete is known as a cement composite with high performance and adhesion. This composite has a lot of psychological capabilities and efficiency, so the use of this concrete, in addition to reducing construction time, also reduces costs. Self-compacting composites fit into the mold without the need for vibration and pass through the smallest seam. In this study, the effects of adding microsilica, fly ash and GGBFS pozzolan on the mechanical properties of self-compacting cement composite were investigated in 8 mixing designs. In making samples, 3 alternative cement additives at the rate of 10% were used in different mixing designs. In the compressive strength test, the sample with 10% microsilica increased the resistance by 5.4% more than the reference sample, which showed that the addition of microsilica increases the strength and water absorption in the samples. However, these pozzolans reduce the flow of self-compacting concrete. On the other hand, in the design of air ash mixtures, the resistance was reduced, but no significant changes were observed for slag. In total, other experiments such as tensile strength, flexural strength, water absorption, capillary, ultrasonic pulse velocity and impact resistance were performed on the mixing design. UR - https://ceej.aut.ac.ir/article_4842.html L1 - https://ceej.aut.ac.ir/article_4842_29ebea2710ca25565cf592c7c68765e0.pdf ER -