Effect of industrial waste and RBI Grade 81 on swelling characteristics of clayey soil

Abstract

This paper deals with improvement of swelling characteristics of clayey soil by adding industrial waste and RBI Grade 81. The construction of road in clayey soil is challenging due to its more swelling and more shrinkage characteristics. To overcome this problem there are two solutions one is replace the clayey soil by good quality granular material. The second is stabilizing the subgrade clayey soil by using various industrial wastes. Generally pond ash, fly ash and stone dust are use for soil stabilization. The swelling and shrinkage characteristics of clayey soil are considerably improved if it treated with industrial wastes and RBI Grade 81. The RBI Grade 81 is chemical soil stabilizer. The differential free swell index (DFS) test was carried out on different mix of soil, industrial waste and RBI Grade 81. The result shows that the DFS index of untreated soil obtained is 65% reduces to 35% by addition of 20% fly ash and 4% RBI Grade 81. This reduction in DFS index helps to reduce the effect of moisture variation in clayey soil.

A Study on Soil Stabilization Using Rbi Grade 81

“…[1], [5], [6], [11] Soil stabilization is a group of earth work technology which enhances the soil characteristics in order to improve mechanical & load bearing properties through technological methods like Soil improvement & Soil Consolidation Soil stabilization method is suitable for heavily soaked soils, which is not suitable for road or traffic construction since required rate of compaction cannot be achieved. [11], [12] The main resolution of soil stabilization is to progress the California bearing ratio of the available soil by four to six times & to improve on site materials which in turn creates a solid & a strong base & sub base courses.…”

“…RBI Grade 81 is an ecofriendly, inorganic, hydration activated powder based stabilizer which combines along with the soil particles to create layers that are interconnected through a complex bury atom structure. [6], [10], [11], [12] General the last conclusion which has been made by them was that the UCS & CBR quality increments with expansion in RBI 81. Expansion proposes its dependability as great stabilizer to enhance execution of delicate soil.…”

Modeling of the stress-strain state of the ground mass contaminated with peracetic acid

“…Currently, there is a problem resulting from the ground contamination with industrial effluents directly under industrial buildings, which in turn leads to the swelling of ground bases, the shifting of foundations and the destruction of building structures [1,2,5].…”

Estimation of the Stress-Deformed State of Ground, Polluted by Peroxic Acid

“…В последнее время возникла проблема загрязнения промышленными стоками грунтов непосредственно под промышленными зданиями, что в свою очередь приводит к набуханию оснований, перемещениям фундаментов и разрушению строительных конструкций [1,2,5]. Поэтому при проектировании следует учи-тывать влияние набухания на всю систему «основание -фундамент -сооружение» для более надежной работы конструкции.…”