Abstract:
The conventional aggregates used in the construction industry today are consumed in enormous
quantities annually. Construction costs go up, natural resources are depleted, and the state of the
earth's surface continues to deteriorate due to the rising demand for conventional aggregate. Since
these base course materials are only widely available in a few regions of the nation, using them
everywhere incurs transportation costs and takes time, which causes project delays. The possibility
of using RA and MC as an alternative base course material by blending them with CSA was
investigated in this study. The mechanical stabilization of the red ash and marble chips and an
examination of their physical characteristics were used in a laboratory test; In a laboratory. Nine
samples of red ash and marble chips blended with CSA in varying percentages (0, 5, 10, 15, 20,
25, and 30 percent) were examined for this research's investigation. The laboratory test results
show that for 100% red ash and marble chips gives; CBR, SG, AIV, ACV, LAA, FI, EI, water
absorption and Soundness: 55.4%, 2.38%, 18.20%, 26.34%, 19.69%, 5.59%, 12.09%, 2.5% and
13.80 and 83.6%, 2.63%, 19.70%, 26.41%, 19.75%, 23.2%, 16.9%, 1.24% and 12.22 respectively.
Some of these test results meet the ERA standard specification, but the CBR, water absorptions,
and soundness test results fall short of the requirements. Overall, the red ash and marble chips
cannot individually meet the ERA standard specification; therefore, mechanical stabilization was
used to enhance the physical properties of samples. Results are obtained by mixing 20% Red ash,
20% marble chips, and 60% CSA. Are CBR, SG, AIV, ACV, LAA, FI, EI, water absorption and
Soundness of 102.5%, 2.55, 14.23%, 19.84%, 7.92%, 18.61%, 20.77% 0.83% and 7.38
respectively. The CBR, water absorption, and soundness all meet the necessary ERA standard
specification for GB2 and GB3 materials at this proportion. Therefore, it was advised to use red
ash up to 20% and marble chips up to 20% by weight with 60% CSA for the construction of road
base courses when they can be found a reasonable distance from a construction site and in areas
where the materials are widely available. Road Contractors and other civil engineering
professionals can also use this blending percentages for base course construction. Since the
laboratory test done for this paper is not enough, I advise a person who want to work his research
on this tittle to check again and fill the gap on the test result on this study.
