闭孔珍珠岩
hole-close perlite
珍珠岩
perlite
1. 容重大
(120~180kg/m³)
2.吸水率较大
3.颗粒强度较大
4.导热系数大
1. high density
2. high water absorption
3.high particle strength
4.high heat conductivity
1.不规则的外形，在砂浆中易产生阻力，和易性差，搅拌时间长，造成其在砂浆中不易分布均匀，容易造成应力集中，引起空鼓、开裂，大大降低了砂浆的力学性能和热工性能，也影响到保温层的使用寿命。
1. irregular shape makes iteasy to produce resistance, low workability, long mixing time,makes it unevenly distributed in the mortar, which will easy causestress concentration, hollowing and cracking, reduce mechanicalproperty and thermal property greatly, also has impact on theinsulation layer service life.
2.容量大，导热系数较差，在砂浆中必须增加轻骨料掺加比列方能满足热工性能标准要求，轻骨料掺加量的增加必然会降低砂浆的力学性能或增加胶凝材料成本。
2. high capacity with badheat conductivity, need to increase light aggregate to meet thethermal property re, but adding light aggregate willreduce mortar mechanical property and increase gelled materialscost.
3.吸水率较大，在应用过程中会出现上述膨胀珍珠岩同样的问题，不过在各项指标上要优于膨胀珍珠岩。
3. high water absorption,will have similar problems as expanded perlite while using, buthave better performance than expanded perlite.