Question: Problem 5 : An air - entrained concrete mix is to be proportioned for a reinforced concrete structure that would be placed under seaw ter
Problem :
An airentrained concrete mix is to be proportioned for a reinforced concrete structure that would be placed under seawter A required compressive strength, of ksi is specified. Placement conditions allow for concrete with a slump of to The coarse aggregate is satisfactorily graded from No to in nominal max size of in in accordance with ASTM C and has a dryrodded weight density of The coarse aggregates will be gravel with crushed particles. Determine the weight of proportions needed in a cubic yard of concrete using the absolute volume method. What is the weight of ingredients needed for a laboratory trial batch of Material characteristics of the cement and aggregates are detailed in the table below.
tableMaterial characteristics,Cement,Fine aggregates,Coarse aggregatesBulk specific gravity,Fineness modulus,Absorption Moisture content tableDryrodded unit weight
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