### How To Determine The Aggregate Crushing Strength Value

Apr 26, procedure for crushing strength of aggregate. before testing, the aggregate should be in surface dry condition.you can achieve the dry condition of aggregate by placing aggregates in an oven for 4 hours at 100-degree celcius. the aggregates passing through 12.5mm and retained on 10mm is sieves are selected for finding aggregate crushing.Aug 01, application of the proposed model for portland cement concrete mixes. the proposed model for the estimation of the concrete strength at different ages is applied to the data taken from the literature and given in table 1 as follows:. based on the compressive strength at 28 days and employing eq. the grade constant (b) could be calculated from which using.