灰缝大多是指墙体砌筑时两块砖间的砂浆层。即砌墙时砖与砖之间用灰浆黏结后抹出的缝线。 灰缝分为水平灰缝和竖直灰缝,块材上下皮之间的灰缝称为水平缝,块材相邻之间的缝称为竖缝。它影响砌体的强度、保温、隔热、抗渗、抗冻等性能。砖砌体中,灰缝厚度一般为10mm,但不应小于8mm,也不应大于12mm。
特别注意窗台板下灰缝,如不密实可用防水宝修嵌裂缝。
Sill plate special attention to seam under the ash, such as the non-compaction can be embedded waterproof Po repair cracks.
新加坡双溪布洛湿地保护区中,一只灰缝夜莺站在树枝上。
An ashy tailorbird on a tree branch at the Sungei Buloh wetland reserve, a wildlife sanctuary in Singapore.
同时介绍防止灰缝鼓起、裂缝、勾缝不密实的防治措施等。
Furthermore, the prevention measures for blowing up of mortar joint, crack and no dense joint are introduced.
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