Performance Evaluation of Pavement Geomaterials Stabilized with Pond Ash and Brick Kiln Dust Using Advanced Cyclic Triaxial Testing

Abstract

An increase in the generation of industrial waste materials such as pond ash and brick kiln dust represents a serious threat to the earth’s environment. The waste materials have novel characteristics and therefore their physical, chemical, mineralogical, morphological, mechanical, and toxicity characteristics were determined so that these materials can be incorporated as construction materials based on technical and environmental considerations. The purpose of this study is to utilize the wastes in the stabilization of clay geomaterial to outperform existing problems of inadequate strength and stiffness of the subgrade layer in flexible pavements. Mixtures of geomaterials, containing pond ash, brick kiln dust, and their combination were prepared and important engineering characteristics such as the plasticity, compaction, and strength of the mixtures were examined. The measurement of response to dynamic loading is a pre-condition for the accurate characterization of geomaterials used in pavement construction. Using advanced cyclic triaxial testing, this study evaluates the performance of pond ash and brick kiln dust in increasing the stiffness of the geomaterial under cyclic loading. To stimulate the worst field conditions, the stiffness and strength tests were performed under standard and four-day water-soaked conditions. The implementation of several stress-dependent models for the prediction of stiffness was examined. Pond ash and brick kiln dust were found to be effective in increasing the stiffness and strength of the geomaterial. The wastes were the most effectual when added in combination to the geomaterial. The characterization of the wastes was informative in understanding the governing mechanism prevalent in the waste stabilized mixtures. The toxicity characterization study revealed the non-toxic and non-hazardous nature of the waste materials, permitting their use in the construction of pavements. This study recommends the use of wastes in the subgrade of flexible pavements. Further research is needed for performance evaluation of the wastes on silt and sand geomaterials for their wider application.

Stabilization of high-plasticity silt using waste brick powder

“…Consequently, the pavement thickness layers were reduced. Moreover, Gupta et al [23] used BKD and pond ash wastes for the stabilization of clay soil to be used as a subgrade layer in the construction of flexible pavements. This research assesses the efficiency of BKD and pond ash in the improvement of the stiffness of clay soil under repetitive loading.…”

The Combined Effect of Pond Ash with Borrowed Soil Materials Along with Milling Waste for Flexible Pavement Sub-Grade Crater Foiling and Strength Characteristic Enhancement

“…The importance of the study of waste treatment plants concerned with soil pollution and the harmful effects on the environment effects is essentially monitored periodically to ensure the different types of soil characteristics and their strengths are studied thoroughly by qualified and essential team members during the experimentation process (Sharma and Sharma, 2021). The latest software was employed to get adequate results and past results of the soil permeability and its corrosion resistances throughout the concrete materials; flitched materials concerning the different densities ranging from 10 g/m 3 to 100 kg/m 3 are ensured with the help of OSTU technology followed by (Gupta et al, 2020), According to the (Arun et al, 2017), the gradual failures in the soil were found in the order of 5 to 10% compared to last two years; due to the lack of awareness of strengthen characteristics of the lake soil compared to the industry soil; the fragmented release of these minute diffractions defects the entire construction buildings resulting in the high maintenance costs compared to brick concentrates. Hence, it is required to study the properties of the soil, followed by erosion testing, corrosion testing, absorption tests, and diffraction stages.…”