1:2:4, 1:3:6, etc. Are used in which method of volumetric proposition.(a) Minimum void method(b) Water-cement ratio method(c) Arbitrary method(d) Finesse modulus methodI had been asked this question at a job interview.Query is from Cement Concrete Construction in section Cement Concrete Construction of Construction & Building Materials

1:2:4, 1:3:6, etc. Are used in which method of volumetric proposition.

1.	1:2:4, 1:3:6, etc. Are used in which method of volumetric proposition.(a) Minimum void method(b) Water-cement ratio method(c) Arbitrary method(d) Finesse modulus methodI had been asked this question at a job interview.Query is from Cement Concrete Construction in section Cement Concrete Construction of Construction & Building Materials
Answer» The CORRECT choice is (c) Arbitrary method To elaborate: In Arbitrary method of VOLUMETRIC PROPORTIONS, the proportions of cement are depending on the NATURE of work for which concrete is required. THUS the general expression for proportions of cement, sand and coarse aggregate is 1:n:2n by volume.

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