Slope Stability by Using Rice Husk Ash

EasyChair Preprint 7348

Abstract

 Rice husk ash is an attractive pozzolana. Due to its low cost and high exertion, it has a promising perspective in sustainable construction. In combination with lime, its effect in soil enhancement can be equal to cement treatment but its product process consumes much lower energy. The main element of the rice husk ash is silica, which is the element that governs the reactivity of the ash. A delicate burning process is needed to exclude the organic factors in the rice husk but keep the silica to be amorphous so that a largely reactive rice husk ash can be attained. A too high temperature would transfigure amorphous silica to crystalline silica, which would reduce the reactivity. The suggested burning process in literature is 2 hours at 500^ᵒC. Still, due to the exothermic property of the burning rice husk, it's problematic to control the exact burning temperature, hence there's still a possibility that the carbon and the crystallized silica are present and hinder the activity of the rice husk ash. Accordingly, the main perspectives of utilizing rice husk are for energy purposes and silica resources. There was also exploration about soil enhancement effect with unbridled burnt ash and it also showed a good result. Thanks to the relationship between husbandry and civilization, delta areas are the granaries for the world population. According to the statistical database of FAO of the UN, further, than 50 of the world population consumes rice as the main source of chief and the rice consumption has exceeded to much extend the product since 2000. Rice substantially comes from the developing countries located in large delta areas similar to the Yangtze River delta in China, the Ganges delta in India and Bangladesh, or the Mekong delta in China, Thailand, Vietnam. Along with the function of food suppliers, this product also creates a large quantum of rice husk, which causes problems for space and terrain if it isn't well employed.

Keyphrases: Amorphous, CRYSTALLIZED, Exothermic, Pozzolana, Silica

@booklet{EasyChair:7348,
  author    = {Rutvika Rathod and Nikita Sagvekar and Sonali Shinde and Saurabh Pandey},
  title     = {Slope Stability by Using Rice Husk Ash},
  howpublished = {EasyChair Preprint 7348},
  year      = {EasyChair, 2022}}