Experimental study on physical properties of fired perforated brick

The study on the physical properties of fired perforated brick in Nantong mainly from water absorption, bulk density and compressive strength has been accomplished. The physical properties of fired perforated brick which were manufactured under the different RH (relative air humidity) have been compared, and the analysis of the RH (relative air humidity) influence on the physical properties of fired perforated brick has been concluded. The results showed that, the water absorption and compressive strength of products which have been produced under the condition that the RH was about 50% were higher, but the bulk density was lower.