相变微胶囊对砂浆物理力学性能的影响

相变储能砂浆有利于房屋建筑室内环境的温度稳定,对建筑节能具有重要意义。对相变微胶囊掺量变化与砂浆的流动度、表观密度、抗折强度和抗压强度变化的关系进行了研究。研究结果表明,随着相变微胶囊掺量的增加,砂浆的流动度减小,表观密度、抗折强度和抗压强度均呈现出先增大后减小的变化趋势。相变微胶囊取代石英砂的最佳质量分数为10%,此时,砂浆的抗压强度较不掺相变微胶囊的砂浆增加了37.1%。

Influence of Phase Change Micro-Capsule on the Physical Mechanical Properties of Mortar

Phase change energy storage mortar helps to stabilize the temperature of the indoor environment, which is of great significance to the realization of building energy conservation. A study has been made of the relationship between the content of phase change micro-capsules and the fluidity, apparent density, flexural strength and compressive strength of the mortar. The results show that with the increase of phase change micro-capsule dosage, the fluidity of the mortar decreases, and the apparent density, flexural strength and compressive strength all undergo an initial increase and a subsequent decrease. The optimum mass fraction of the phase change micro-capsule to replace the quartz sand is 10%, at which point, the compressive strength of the mortar increases by 37.1%, compared with that of the mortar without the phase change micro-capsule.