Root Causes and Preventive Measures of Cracks within the Concrete Biogas Digester

摘要

The concrete digester has also the great effect on the improvement of the rural hygienic condition. So it has been the most sophisticated and warmly welcomed by the peasants. The paper discusses how to enhance and guarantee the quality of the concrete digester and suggests the root causes and preventive measures of the structural crack within the concrete digester. Based on the on-the-spot investigation in fourteen provinces since 1982, the author thinks that the problem is universal in China.