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Lab 9 laboratory for concrete mix design
Structures And Materials Laboratory (ECS426)
Universiti Teknologi MARA
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Lab 9: Concrete mix design Task: - Using the British Method of mix design, students are required to design a concrete mix according to the specified item in the table. Compute the batch weight that would be use to cast a beam with size of 5m x 4m x 0 m. Group 1:
NO DESCRIPTION SPECIFIED 1 Characteristic compressive strength at 28 days 40 N/mm² 2 Specific strength margin 5 N/mm² 3 Cement type OPC class 42. 4 Slump required 60-80mm 5 Coarse aggregate (1:2 of 10mm and 20mm) Taken from Sungai Perak mining 6 Fine aggregate Taken from Bukit Tinggi rock quarry 7 Grading of fine aggregate (%) passing 600 μm sieve 70% 8 Relative density of aggregate 2.
Group 2:
NO DESCRIPTION SPECIFIED 1 Characteristic compressive strength at 28 days 40 N/mm² 2 Defective rate 5% 3 Cement type OPC class 42. 4 Maximum aggregate size 20mm 5 Slump required 10-30 mm 6 Maximum free w/c ratio 0. 7 Coarse aggregate (1:2 of 10mm and 20mm) Taken from Sungai Perak mining 8 Fine aggregate Taken from Sungai Perak mining 9 Grading of fine aggregate (%) passing 600 μm sieve 65% 10 Relative density of aggregate 2.
Group 3:
NO DESCRIPTION SPECIFIED 1 Characteristic compressive strength at 28 days 45 N/mm² 2 Defective rate 2% 3 Cement type OPC class 42. 4 Maximum aggregate size 20 mm 5 Slump required 75 mm 6 Coarse aggregate (1:2 of 10mm and 20mm) Taken from Sg Buloh quarry 7 Fine aggregate Taken from Sg Buloh quarry 8 Grading of fine aggregate (%) passing 600 μm sieve 65% 9 Relative density of aggregate 2. 10 Maximum cement content 500 kg/m 3 11 Minimum cement content 350 kg/m 3
Lab 9 laboratory for concrete mix design
Course: Structures And Materials Laboratory (ECS426)
University: Universiti Teknologi MARA
