A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EVALUATION OF THE PERFORMANCE OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT BY LIME AND PUMICE AT ELEVATED TEMPERATURE
Concrete materials in structures are usually exposed to high temperatures during fire. Knowing the relative properties of concrete after such an exposure of fire on concrete is great importance in terms of the serviceability of buildings. This research primarily deals with the characteristics of concrete, including compressive strength and workability. Moreover, this research also investigates the thermal stability of concrete mixes at elevated temperature. Twenty five mixes of concrete were prepared at different replacement levels of lime (0%, 5%, 10%, 15% & 20%) and pumice powder (0%, 10%, 20%, 30% & 40%) with cement. The water/cement ratio in all mixes was kept at 0.55. The workability of concrete was tested immediately after preparing the concrete mix whereas the compressive strength of concrete was tested after 7, 14 and 28 days of curing in water. The effect of elevated temperatures on compressive strength of the concrete cubes were tested at temperatures range of 1500C,3000C,and 6000and the concrete cubes were cured for 2 hours in Muffle Furnace and allowed to cool down for 12 hours before compressive strength test was conducted. Based on the test results, a combination of 10% lime and 10% pumice powder is recommended with 10.41 % reduction of cost. And the compressive strength of concrete was reduced for all combination of lime and pumice powder at elevated Temperature.
EVALUATION OF THE PERFORMANCE OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT BY LIME AND PUMICE AT ELEVATED TEMPERATURE
Concrete materials in structures are usually exposed to high temperatures during fire. Knowing the relative properties of concrete after such an exposure of fire on concrete is great importance in terms of the serviceability of buildings. This research primarily deals with the characteristics of concrete, including compressive strength and workability. Moreover, this research also investigates the thermal stability of concrete mixes at elevated temperature. Twenty five mixes of concrete were prepared at different replacement levels of lime (0%, 5%, 10%, 15% & 20%) and pumice powder (0%, 10%, 20%, 30% & 40%) with cement. The water/cement ratio in all mixes was kept at 0.55. The workability of concrete was tested immediately after preparing the concrete mix whereas the compressive strength of concrete was tested after 7, 14 and 28 days of curing in water. The effect of elevated temperatures on compressive strength of the concrete cubes were tested at temperatures range of 1500C,3000C,and 6000and the concrete cubes were cured for 2 hours in Muffle Furnace and allowed to cool down for 12 hours before compressive strength test was conducted. Based on the test results, a combination of 10% lime and 10% pumice powder is recommended with 10.41 % reduction of cost. And the compressive strength of concrete was reduced for all combination of lime and pumice powder at elevated Temperature.
EVALUATION OF THE PERFORMANCE OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT BY LIME AND PUMICE AT ELEVATED TEMPERATURE
BILILIGN FIRDAWEK (author)
2019-11-15
doi:10.20372/nadre/4303
Theses
Electronic Resource
English
DDC:
690
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