Test results and model for the residual compressive strength of concrete after a fire. J. of Struct. Fire Eng., 2(1), pp. 29-44.Li, Y.-H.; Franssen, J.-M. Test Results and Model for the Residual Compressive Strength of Concrete after a Fire. J. Struct. Fire Eng. 2011, 2, ...
Under these conditions, the results are similar to those obtained when the ends are faced by grinding. Nevertheless, it is safer to grind the specimen ends when the strength of the concrete exceeds 100 MPa. It is shown that eccentricity of less then 4 mm between the testing machine and ...
While inspecting the compressive strength of concrete by means of a rebound method,the manual calculating is a very large work quantity,and easy to bring about some unnecessary mistakes. 采用回弹法检测混凝土抗压强度时,大量检测数据的手工计算工作量大且容易出错,应用Ex-cel中的VBA工具可以大大简化编程计...
There are many factors that affect the compressive strength of concrete. The relationship between compressive strength and these factors is a complex nonlinear problem. Empirical formulas commonly used to predict the compressive strength of concrete are
Results of an Interlaboratory Test Program: Compressive Strength of Concrete Test Method for Compressive Strength of Cylindrical Concrete Specimens (ASTM C 39) and CSA A23.2-9C (Compressive Strength of Cylindrical Concrete Specimens)... Suzanne Kennedy,Rachel Detwiler,John Bickley,... - 《Cement Conc...
AS1012.9—1999 COPYRIGHT 1 AustralianStandard TM Methodsoftestingconcrete Method9:Determinationofthecompressive strengthofconcretespecimens 1SCOPE ThisStandardsetsoutthemethodfordeterminingthecompressivestrengthofconcretetest specimenspreparedinaccordancewiththeprovisionsofAS1012.8,AS1012.14or AS1012.19. NOTE:This...
The present study is aimed to study the effect of elevated temperatures ranging from 50 to 250°C on the compressive strength of high-strength concrete (HSC) of M60 grade made with ordinary portland cement (OPC) and pozzolona Portland cement (PPC). Tests were conducted on 100 mm cube specim...
4) compressive strength 抗压强度 1. Effect of the size and the proportion of gas coal and coal-char on the consist-compressive strength of formed coke; 煤料的粒度对型焦抗压强度的影响 2. Influence of pressure head roughness upon compressive strength and test result dispersion of single ...
1.5.2 Compressive strength Compressive strength is an essential property in structural materials, for example, mortar, which comprises the interacial transtition zone in concrete, stone, and steel, since material design is normally evaluated in terms of the risk of compression failure. In addition th...
In this study, concrete specimens, having different shapes and sizes have been studied for two different strength levels cured in air and in water. Compressive strength test was performed on cubic and cylindrical samples, having various sizes. The analyses of this investigation were focused on conve...