I need the answer as soon as possible Which one of the following types of concrete ismost suitable in extreme cold climates?(a) Air-entrained concrete(b) Ready mix concrete(c) Vacuum concrete(d) Coarse concrete

Vacuum concrete is used for production in factory for precast unit . Air entrained concrete have air…

Answered: Which one of the following types of…

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 1P: Portland cement concrete consists of what four primary elements?

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Design the concrete mix according to the following conditions: Design environment Tennis court, subjected to freezing Required design strength =21 MPa Slab thickness=300 mm Statistical data indicate a standard deviation of compressive strength of 3.7 MPa is expected (for 50 samples) Only air entrainer is allowed Available materials: Air=7% Air entertainer: Manufacturer specification is 9.0 ML /1% air/100kg cement Slump=50 mm Coarse aggregate: 50 mm nominal maximum size, crushed stone Bulk volume oven-dry specific gravity=2.61, absorption=2.8%, oven-dry rodded density=1870 kg/m3 Moisture content=1% Fine aggregate: Natural sand Bulk oven-dry specific gravity=2.54, absorption=3.4% Moisture content= 4.5% Fineness modulus=2.60 Cement: Type I, relative density=3.1
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Which one of the following types of concrete is most suitable in extreme cold climates? (a) Air-entrained concrete (b) Ready mix concrete (c) Vacuum concrete (d) Coarse concrete