晨枫 发表于 2016-5-20 21:05: M% H) M$ h5 D e1 Q6 V
这是防白蚁危害的。也真是因为这些化学处理，我对CLT的长期安全性有怀疑，缓慢释放出来对人体不好。 ...
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For indoor air quality, CLT has been tested to determine the level( n, v0 J. X9 V0 \" g% |! E7 O
and safety of the off gassing it produces. CLT glue lines were tested for; j2 m7 N( p5 V. l% A) ~
volatile organic compounds (VOCs), including formaldehyde emissions.4 I7 \1 I: ~0 K, W. {
The VOCs as measured in a series of tests were found to be roughly one 3 L& l1 h1 S# {% F: J aparts per billion (ppb), well under the standard of 50 ppb deemed to be+ E# M' ]/ l% Y- A
a health hazard. 9 Y+ B& s4 B* m8 |* y! Y# m z# p1 \$ k* h& s" }4 H3 }/ S
source:+ _; H9 a# A& [2 @. g) m4 t CROSS-LAMINATED TIMBER IN BRITISH COLUMBIA. U- T( K9 ~! C2 n6 W2 X http://www.naturallywood.com/sites/default/files/CLT-and-Dowling-Residence.pdf
石工 发表于 2016-6-2 15:29% [$ q3 `* k* r; }5 P/ @% {
For indoor air quality, CLT has been tested to determine the level 4 i ]- H/ E3 D% m7 b4 d; rand safety of the off gassing i ...
1 n* u4 v G* i+ |$ rCLT肯定是符合标准的，我只是对现行标准不大放心。treated wood在当年也是符合标准的。
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见过一个游泳池的房顶梁用这种材料做然后靠墙的部分全部腐烂了。好像是水蒸汽在棚顶凝结然后流倒最底初聚集，从而腐烂低处。。所以我看，这种材料不像他们所宣称的那样。不过到是看到很多新建的游泳馆都在用这种材料。估计以后会出大问题的，那天塌了死几个人，人们才会禁止使用这种材料在可能集水的地方。
石工 发表于 2016-6-3 05:29 ' O9 Y4 r* R- M7 j3 KFor indoor air quality, CLT has been tested to determine the level 5 c5 \2 @! A& D- w A0 e+ tand safety of the off gassing i ...
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1 T! ^/ l! A# M c! @+ W/ a60年代这边还很时兴喷聚尿醛泡沫，后来就是因为有formaldehyd释放而弃用了。
雷达卡
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显身卡
发表于 2016-5-20 01:09:46
