The effectiveness of concrete temperature and entrained air content in concrete compressive strength.

摘要

The purpose of this study is to focus on two factors affecting the concrete compressive strength at different ages of concrete. Those factors are the concrete temperature and the entrained air content.;The data were collected through the researcher's company database for Easton Town Center project. The project is consists of two Post Tension concrete garages, approximately; forty thousand (40,000) Cubic Yard of concrete will be involved in this project.;The concrete laboratory test is taking a concrete test cylinders every hundred (100) Cubic Yard of concrete and the concrete sample (cylinder set) consists of seven- (7) cylinders.;The concrete compressive strength has been tested for two- (2), three- (3), seven- (7), and twenty-eight- (28) days of the concrete placement. The concrete cylinders have been taken, treated, and tested according to ASTM C260--94, ACI 301 and ACI 318 standard.;The researcher hypothesized that the concrete temperature and the entrained air content have a positive effect in the concrete compressive strength.;The researcher has concluded that the Concrete Temperature and the concrete entrained air content positively effect the concrete compressive strength.