Experimental Study on Rise Husk Ash & Fly Ash Based Geo-Polymer Concrete Using M-Sand

International Conference on Materials, Alloys and Experimental Mechanics 2017

材料科学;金属学;机械制造

Kishore, G. Nanda^1 ; Gayathri, B.^1

Civil Engineering Narsimha Reddy Engineering College, Hyderabad, India^1

关键词: Alkaline activators;    Alkaline solutions;    Cement concrete;    Environmental problems;    Ordinary Portland cement;    Polymer concretes;    Rice husk ash;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/225/1/012273/pdf
DOI  :  10.1088/1757-899X/225/1/012273

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Serious environmental problems by means of increasing the production of Ordinary Portland cement (OPC), which is conventionally used as the primary binder to produce cement concrete. An attempt has been made to reduce the use of ordinary Portland cement in cement concrete. There is no standard mix design of geo-polymer concrete, an effort has been made to know the physical, chemical properties and optimum mix of geo-polymer concrete mix design. Concrete cubes of 100 x 100 x 100 mm were prepared and cured under steam curing for about 24 hours at temperature range of 40°C to 60°C. Fly ash is replaced partially with rice husk ash at percentage of 10%, 15% and 25%. Sodium hydroxide and sodium silicate are of used as alkaline activators with 5 Molar and 10 Molar NaOH solutions. Natural sand is replaced with manufacture sand. Test results were compared with controlled concrete mix of grade M30. The results shows that as the percentage of rice husk ash and water content increases, compressive strength will be decreases and as molarity of the alkaline solution increases, strength will be increases.