The influence of fly ash and shell-fish on physical property of concrete cement

Abstract

The waste fly ash and shell fish are added to base material of cement (clinker, gypsum, trash and lime stone), for environmental reason. The ratio fly ash and shell fish was varied respectively 375:125; 250:250; 125:375, in grams weight for 2500 grams of total material. The chemical composition of raw material was determined by using x-rays fluorescence (XRF). Physical properties of sample match with Standar Nasional Indonesia (SNI). The physical properties of the best sample is made from composition of fly ash and shell fish as a substitution material on cement was 10 % in weight, with ratio 250:250 in grams weight.

The influence of sugarcane bagasse ash as fly ash on cement quality

“…The present of sugarcane bagasse ash in cement decrease its fineness by 0.6% -4.0%. Compare with cement added fly ash and shell-fish powder, its fineness decrease by 2.8% -5.0% [3]. Samples S2 -S6 have fineness less than S1 as sample control with out sugarcane bagasse ash, but still higher than standard require.…”

“…The concrete cubes of size 10x10x10 cm 3 was measured at age of 3, 7 and 28 days as it recommended. Compressive strength sample S1 -S6 exceed standard for tested age of 3 day and 7 days.…”

“…The use of fly ash in cement has reported in the previous studies [1][2][3][4], and several studies on sugarcane bagasse ash were used as substitution in the original Portland cement [5,6]. Fly ash from sugarcane bagasse is a waste material but it can be used as substitution of base material for cement, since it is rich in silicate.…”

Combined Effect of Marble Waste as Powder and Aggregate Form on the Proprieties of the Mortar

“…However, most of them focus on mechanical and rheological properties [12,16,17]. It was found in many researches that such nanomaterials as: silica fume, fly ash or pozzolana can improve water tightness or reduce porosity of concrete by filling capillary pores [18][19][20]. Mineral powders probably can act in the same way.…”