Cultured stone veneer villa used to judge what is the standard?

Cultured stone veneer  villa used to judge what is the standard?

1, lightweight, anti-shedding. Must use high-strength, lightweight aggregate and no radiation. Per square meter quality ≤ 35KG, per cubic meter density ≤ 1300KG;
2, non-toxic, non-radiation (internal exposure index ≤ 0.6Bq/Kg, external exposure index ≤ 0.8Bq/Kg);
3, wind. To weathering resistance, surface strength must be high.
4, waterproof (water absorption of 17%, after 2.5% protection);
5, ie, acid and alkali resistant (by 0.01mol / L hydrochloric acid solution and 0.01mol / L sodium hydroxide solution was dropped after no obvious damage to the stone surface, the phenomenon of falling blocks without mortar, and restored to its original state);
6, frost resistance (at minus 30 ℃ to minus 10 ℃ after 50 freeze-thaw conditions, no peeling, no breakage.);
7, resistance to artificial aging (150H), no significant change;
8, surface efflorescence and efflorescence. (In fact, this is off base, cement dealkalization, the concrete structure was destroyed, life will be affected);
9, flexural strength can not be too low. Products with low flexural strength, transport losses and construction losses are too great. After some time on the wall, there will be cracks ---- pasted materials generated during contraction forces will pull off culture stone, so the cracks; from other forces will pull off the wall culture stone.
Meet the above criteria can be called "villa culture stone."
edit by china stone veneer manufacturer