A Method for Calculating Porosity Based on the Cohesion of Modern Rammed Earth
Porosity is an important parameter that affects the thermal performance of modern rammed earth materials.However,the commonly used drainage displacement method is of a large error in measuring porosity,while the mercury intrusion method cannot efficiently measure material porosity,which is not conducive to the quantitative evaluation of the thermal performance of modern rammed earth materials.Based on the theory of molecular attractive forces between solids,a porosity calculation method based on the cohesive force of modern rammed earth materials was constructed,and verified through experiments.The results show that there is a logarithmic function relationship between the cohesive force and porosity of modern rammed earth materials.Through the formula,the average error in calculating porosity is 7.06％,which verifies the rationality of the calculation results.
万方数据
维普
