A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INVESTIGATING MECHANICAL PROPERTIES OF ANIMAL BONE POWDER PARTIALLY REPLACED CEMENT IN CONCRETE PRODUCTION
Concrete is the most important construction material in great demand. In concrete production, portland cement is a major constituent. However, in time cement cost is increasing. This surge in price a challenges in construction industry and there is a demand in finding alternative environmental friendly cement partial replacing material without compromising mechanical properties of structural concrete. This research experimentally investigated use of animal bone powder (ABP) as partial replacement of cement in structural concrete production. Five groups of C-25 concrete grade specimens with (0%, 5%, 10%, 15%, & 20%) varied proportion of animal bone powder (ABP) by weight were casted and tested for fresh concrete (slump test) and hardened concrete mechanical properties such as compressive strength, split tensile strength and flexural strength at different ages. MP-AES (Microwave Plasma-Atomic Emission Spectroscopy) for elemental analysis showed that ABP is reach in calcium (contained about 58.64% of calcium, Ca) where the amount of Si, Al and Fe are very small. A total of 180 concrete specimens were casted at Adama Science & Technology University & tested at Addis Ababa Science & Technology University. The recorded 28th mean compressive, flexural and split tensile strengths for 0%, 5%, 10%, 15% & 20% replacement of cement by ABP were (33.63, 30.45, 28.20, 23.64, 20.59 , 3.62, 3.21, 3.04, 2.86, 2.63, 4.39, 3.77, 3.42, 3.21, & 2.68)MPa respectively. This study revealed that as the percent addition of ABP increases, its strength significantly declined from the control specimen. Also, test results indicated that optimum cement partial replacing amount of animal bone powder (ABP) is 10% by weight.
INVESTIGATING MECHANICAL PROPERTIES OF ANIMAL BONE POWDER PARTIALLY REPLACED CEMENT IN CONCRETE PRODUCTION
Concrete is the most important construction material in great demand. In concrete production, portland cement is a major constituent. However, in time cement cost is increasing. This surge in price a challenges in construction industry and there is a demand in finding alternative environmental friendly cement partial replacing material without compromising mechanical properties of structural concrete. This research experimentally investigated use of animal bone powder (ABP) as partial replacement of cement in structural concrete production. Five groups of C-25 concrete grade specimens with (0%, 5%, 10%, 15%, & 20%) varied proportion of animal bone powder (ABP) by weight were casted and tested for fresh concrete (slump test) and hardened concrete mechanical properties such as compressive strength, split tensile strength and flexural strength at different ages. MP-AES (Microwave Plasma-Atomic Emission Spectroscopy) for elemental analysis showed that ABP is reach in calcium (contained about 58.64% of calcium, Ca) where the amount of Si, Al and Fe are very small. A total of 180 concrete specimens were casted at Adama Science & Technology University & tested at Addis Ababa Science & Technology University. The recorded 28th mean compressive, flexural and split tensile strengths for 0%, 5%, 10%, 15% & 20% replacement of cement by ABP were (33.63, 30.45, 28.20, 23.64, 20.59 , 3.62, 3.21, 3.04, 2.86, 2.63, 4.39, 3.77, 3.42, 3.21, & 2.68)MPa respectively. This study revealed that as the percent addition of ABP increases, its strength significantly declined from the control specimen. Also, test results indicated that optimum cement partial replacing amount of animal bone powder (ABP) is 10% by weight.
INVESTIGATING MECHANICAL PROPERTIES OF ANIMAL BONE POWDER PARTIALLY REPLACED CEMENT IN CONCRETE PRODUCTION
BEKA BENTI TESHOME (author)
2019-10-18
doi:10.20372/nadre/4485
Theses
Electronic Resource
English
DDC:
690
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