This investigation was focused on the effect of elevated temperature on rice husk ash (RHA) geopolymers activated with sodium (Na) aluminate. Geopolymers were synthesised by varying the silicon (Si)/aluminium (Al) atomic ratio from 1.5 up to 3.5 and maintaining a sodium/aluminium ratio of 1....
Specimens have been subjected to increments of vertical pressure of 0.25, 0.50, 1.00, 2.00 and 4.00 kg/cm2 in a fixed ring consolidometer. It has been observed due to the addition of rice husk ash to the parent clay, the optimum moisture increases and maximum dry density decrease with ...
The comprehensive exergy characteristics of thirty two rice husk samples including exergy values (moisture related, S related, ash related, and LHV related) and exergy percentages (moisture related, S related, ash related, and LHV related) were investigated in this study. The results show that the...
Rice husk ash (RHA)Fracture characteristicsFracture toughnessBrittleness numberThe main purpose of this study is to determine the influence of adding RHA on the fracture characteristics and brittleness of SCC using 75-notched beams. The specimens were prepared from mixes with various RHA replacement ...
Rice husk ash is a by-product from the burning of rice husk at a temperature lower than 6000C.this means that it is in a form that is soft and easy to grind. Rice husk ash is rich in silica about 90%, 5% carbon and 2% K2O. The specific surface of RHA is...
The agglomeration characteristics of alumina sand-rice husk ash mixtures were investigated at various levels of temperature (750, 850, 900, 950, and 1000°C) and ash content (0·0, 5·0, 10·0, 15·0, 20·0, and 25·0%) using light microscopy, scanning electron microscopy, and energy...
The blended ash fusion characteristics and its fusion mechanism of biomasses (peanut husk (PH) and rice husk (RH)) and Changzhi (CZ) coal with high melting point (MP) were investigated by ash fusion temperature (AFT) detector, X-ray fluorescence, X-ray diffraction, and FactSage software. ...
Rice Husk Ash (RHA)Mechanical propertiesHigh strength concreteNormal conventional concrete has been widely used as a construction material throughout the world because of its advantages of high compressive strength, durabiRani, M. SwaroopaRao, K. Jagannadha...
From the investigation this paper express that the strength and durability characteristics of M40 grade concrete in which cement is partially replaced by rice husk ash and coir. Coconut fibers are reported as most ductile and energy absorbent material. It is concluded that coconut fibers have the ...
Influence of Rice Husk and Sugar Cane Bagasse Ultrafine Ashes on Hydration Characteristics of Cement Based PastesRice husk ashSugar cane bagasse ashHydrationCement based pasteThis work presents a study about the effect of ultrafine pozzolans such as rice husk and sugar cane bagas...