_________ is an igneous rock used for rubble masonry, road metal, foun – InterviewSolution

1.	_________ is an igneous rock used for rubble masonry, road metal, foundation work, etc.(a) Basalt(b) Granite(c) Laterite(d) KankarThe question was asked by my school teacher while I was bunking the class.I would like to ask this question from Common Building Stones of India in portion Stone and Brick Masonry of Construction & Building Materials
Answer» Right answer is (a) Basalt The best explanation: Basalt and TRAP are hard and tough igneous stones which is difficult to WORK. Its specific GRAVITY is 3 and compressive STRENGTH varies from 150 to 185 Newton per mm square. Its weight varies from 18 to 29 kN per METRE cube.

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