膨胀珍 珠岩 Expanded perlite | 珍珠岩 Perlite | 1. 容重轻 (60~80kg/m³) 2.吸水率极大 3.颗粒强度低 4.导热系数小 1. Low density 2.High water absorption 3.Low particle strength 4.Low heat conductivity | 1.不规则与毛絮状的外形，容易在砂浆搅拌过程中产生阻力，和易性极差。 1. irregular and floccus,easy to make resistance while mixing, bad workability 2.容重轻，颗粒强度低，本身有较好的热工性能，但在砂浆搅拌过程中容易破碎，会很大程度降低其热工性能 2. Low density, low particlestrength, good thermal property itself, but break easily whilemixing, and reduce thermal property. 3.吸水率大，使得砂浆的需水量增加，破坏了砂浆的凝固周期，使得砂浆的力学性能大大降低，极易产生空鼓、开裂，严重影响整个保温系统的热工性能和耐久性。 3. High water absorption,which increase mortar water demand, degrade its mechanical propertysignificantly, then easy to have hollowing and craze, has a strongimpact on the thermal property and durability. |
膨胀珍 |
