A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXPERIMENTAL INVESTIGATION ON EGGSHELL POWDER BLENDED CONCRETE
Concrete is a major construction material in the world. It is simply composed of paste and aggregate. But the production of cement has a carbon footprint, so to reduce this environmental impact cement replacement material is necessary. In this research experimental study was carried out on how to use eggshell powder as partial replacement of cement for concrete production. The research was carried out by conducting laboratory tests for concrete making materials. Concrete mix design was prepared for C35 classes of concrete using ACI mix design procedure. Cement was replaced by eggshell powder at 3%, 7%, 11%, and 15 % by volume of cement. The control mix without incorporation of eggshell powder was prepared which was used as reference for comparison of test results with those specimens produced by partial replacement. Slump test was conducted for fresh concrete as the percentage of eggshell powder increases workability of eggshell replaced concrete also increases. The properties of hardened concrete were studied by conducting compressive strength, flexural strength and split tensile strength tests. The compressive and split tensile strength test was carried out for 7 and 28 days of curing while flexural strength of concrete was carried out for 28 days of curing. The test result of compressive strength increases up to 7 % replacement of ordinary Portland cement by eggshell powder, but beyond 7 % replacement compressive strength decreases as compared to the control mix. The test result of split strength increases up to 7 % replacement of cement by eggshell powder, but beyond 7 % replacement split tensile strength decreases as compared to control mix. The test result for flexural strength shown that as the percentage of eggshell powder increases flexural strength also increases. It can be concluded that 11% replacement of cement by eggshell powder results in a good concrete properties and higher replacement could also be used with a slight reduction in performance of concrete
EXPERIMENTAL INVESTIGATION ON EGGSHELL POWDER BLENDED CONCRETE
Concrete is a major construction material in the world. It is simply composed of paste and aggregate. But the production of cement has a carbon footprint, so to reduce this environmental impact cement replacement material is necessary. In this research experimental study was carried out on how to use eggshell powder as partial replacement of cement for concrete production. The research was carried out by conducting laboratory tests for concrete making materials. Concrete mix design was prepared for C35 classes of concrete using ACI mix design procedure. Cement was replaced by eggshell powder at 3%, 7%, 11%, and 15 % by volume of cement. The control mix without incorporation of eggshell powder was prepared which was used as reference for comparison of test results with those specimens produced by partial replacement. Slump test was conducted for fresh concrete as the percentage of eggshell powder increases workability of eggshell replaced concrete also increases. The properties of hardened concrete were studied by conducting compressive strength, flexural strength and split tensile strength tests. The compressive and split tensile strength test was carried out for 7 and 28 days of curing while flexural strength of concrete was carried out for 28 days of curing. The test result of compressive strength increases up to 7 % replacement of ordinary Portland cement by eggshell powder, but beyond 7 % replacement compressive strength decreases as compared to the control mix. The test result of split strength increases up to 7 % replacement of cement by eggshell powder, but beyond 7 % replacement split tensile strength decreases as compared to control mix. The test result for flexural strength shown that as the percentage of eggshell powder increases flexural strength also increases. It can be concluded that 11% replacement of cement by eggshell powder results in a good concrete properties and higher replacement could also be used with a slight reduction in performance of concrete
EXPERIMENTAL INVESTIGATION ON EGGSHELL POWDER BLENDED CONCRETE
HELEN HORDOFA (author)
2019-09-17
doi:10.20372/nadre/4131
Theses
Electronic Resource
English
DDC:
690
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