Wednesday, October 20, 2010

Effect of Cement/Water Content on Shrinkage.

Cement Content Bags/cubic yard	Concrete composition Cement Water Air			Aggregate	Water + air	Water cement ratio by weight	Slump (inches)	Shrinkage *(av. 3 x 3 x 10 prism)**
4.99	0.089	0.202	0.017	0.692	0.219	0.72	3.3	0.0330
5.99	0.107	0.207	0.016	0.670	0.223	0.62	3.6	0.330
6.98	0.124	0.210	0.014	0.652	0.224	0.54	3.8	0.0289
8.02	0.143	0.207	0.015	0.635	0.223	0.46	3.8	0.0300

Civil Construction Notes