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隔墻、吊頂板材開裂的主要原因

  • 2013-05-18 11:20:39
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  • 編輯:中華板材網(wǎng)
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隔墻、吊頂板材開裂最常見的有中間通長裂縫、轉(zhuǎn)角處裂縫、與墻體接觸處裂縫三種。從材料本身的特性來講,出現(xiàn)開裂主要有以下幾個方面的原因:

 第一,材料脆性大,抗拉、抗彎強(qiáng)度低,極限應(yīng)力小;

 第二,材料硬度較高,抗沖強(qiáng)度差,破壞時容易發(fā)生整體開裂,存在著耐久性問題;

 第三,材料濕脹率高,板材受潮會吸濕膨脹,容易引起墻體變形,嚴(yán)重者甚至?xí)?dǎo)致整個墻面開裂;

 第四,材料吸水率高,容易導(dǎo)致接縫開裂,表面裝飾層剝落。

 

 

 

 

 

 

 

標(biāo)簽:板材品牌 板材 生態(tài)板 細(xì)木工板 中國板材十大品牌

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