In concrete, producing an effective concrete-air content is a vital aspect. Though the air reduces the strength of the concrete, the air does add compressibility to the concrete. This makes the concrete more durable through temperature changes allowing the concrete bend and flex in very high or very low temperature conditions. There are situations when... Read more »
North American PVC resin prices increased in June, with strong activity in the construction sector sited as the reason for the increase. The price increase of an average of 2 cents per pound made for the third increase in just four months. While the U.S. housing market continues to recover from the recession of 2008... Read more »
