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Engineering · Civil Engineering
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Question (2): Obtain the following, for all problems below: a) The judgment as regards the extent of produced concrete being in accordance with the b) The impact of the means of sample preparation and testing on the variation of the c) The level of Quality Control for the produced concrete requirements of the project. obtained results. Prediction of the extent of compliance of the produced concrete- in future- with the project requirements. In case the requirements are not satisfied, what are the steps that should be followed? d) (i) Concrete compressive tests were conducted on concrete cubes of different locations within a construction project. The compressive strength values turned out as follows: Compressive Strength (N/mm Test Number Specimen 1 Specimen 2 Specimen 3 32.3 29.8 30.2 29.7 31.6 32.2 32 31.1 29.9 31.4 30.4 30.7 31.7 30.6 30.7 30.2 30 30 30 31.6 30.9 31.5 31.1 31.6 12 31.5 30.7 Taking into consideration that the required characteristic strength of concrete is 30 N/mm accepted percentage of defects is 5%. (ii) Concrete compressive tests were conducted on concrete cubes of a construction project. The compressive strength values were as follows:

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