In the context of provisions relating to durability of concrete, consider the followingassertion:Assertion (1): As per IS 456-2000, air entrainment to the extent of 3% to 6% is required forconcrete exposed to marine environment.Assertion (2): The equivalent alkali content (in terms of Na2O equivalent) for a cementcontaining 1% and 0.6% of Na2O and K₂O, respectively, is approximately 1.4% (rounded to 1decimal place).Which one of the following statements is correct?A. Assertion (1) is true and Assertion (2) is FALSEB. Both Assertion (1) and Assertion (2) are TRUEC. Both Assertion (1) and Assertion 2) are FALSED. Assertion (1) is false and Assertion (2) is TRUE

Given, Choose the correct assertion given as following. Assertion(1). As per IS 456-2000, air…

Answered: Which one of the following statements…

Engineering

Civil Engineering

Which one of the following statements is correct?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Recently there has been an increasing use of cements containing pozzolanic materials as a means of limiting premature deterioration of concrete structures. (a) Describe three (3) pozzolanic materials that are being used increasingly by the construction industry as partial replacement for Portland cement in concrete? (b) If you were to choose a blended cement for a concrete structure in a marine environment, which of the choices below would you choose and why? 10% Slag 60% Slag 90% Slag 90% OPC 1. 40% OPC 1. 10% OPC (c) From the knowledge of the effects of GGBS, PFA and microsilica, indicate whether their inclusion to provide a concrete of equivalent 28 day strength, is likely to enhance or reduce resistance to each of the processes stated belows i. Alk Silica Reaction (ASR) in concrete Chloride ingress in concrete (not corosion) 11 CS Scanned with CamScanner
In the context of provisions relating to durability of concrete, consider the following assertion: Assertion (1): As per IS 456-2000, air entrainment to the extent of 3% to 6% is required for concrete exposed to marine environment. Assertion (2): The equivalent alkali content (in terms of Na2O equivalent) for a cement containing 1% and 0.6% of Na2O and K₂O, respectively, is approximately 1.4% (rounded to 1 decimal place). Which one of the following statements is correct? A. Assertion (1) is true and Assertion (2) is FALSE B. Both Assertion (1) and Assertion (2) are TRUE C. Both Assertion (1) and Assertion 2) are FALSE D. Assertion (1) is false and Assertion (2) is TRUE
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