止(zhi)(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)鋼(gang)(gang)板(ban)(ban)又(you)稱為(wei)水(shui)(shui)(shui)(shui)(shui)(shui)下混凝(ning)土(tu)澆筑(zhu)止(zhi)(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)分層板(ban)(ban)，是一種水(shui)(shui)(shui)(shui)(shui)(shui)工(gong)(gong)結構材料，屋(wu)面防滲鋼(gang)(gang)板(ban)(ban)，主要用于防水(shui)(shui)(shui)(shui)(shui)(shui)和分層作用。止(zhi)(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)鋼(gang)(gang)板(ban)(ban)的作用止(zhi)(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)鋼(gang)(gang)板(ban)(ban)主要的作用就是用于水(shui)(shui)(shui)(shui)(shui)(shui)工(gong)(gong)建設中(zhong)的防水(shui)(shui)(shui)(shui)(shui)(shui)處理。在水(shui)(shui)(shui)(shui)(shui)(shui)下混凝(ning)土(tu)澆筑(zhu)的過程中(zhong)，因為(wei)水(shui)(shui)(shui)(shui)(shui)(shui)的存在，常(chang)常(chang)會導(dao)致混凝(ning)土(tu)中(zhong)的水(shui)(shui)(shui)(shui)(shui)(shui)泥漿流(liu)失，鍍鋅防滲鋼(gang)(gang)板(ban)(ban)，從而影(ying)響混凝(ning)土(tu)的質量。而使(shi)用止(zhi)(zhi)水(shui)(shui)(shui)(shui)(shui)(shui)鋼(gang)(gang)板(ban)(ban)可以在施工(gong)(gong)中(zhong)將水(shui)(shui)(shui)(shui)(shui)(shui)流(liu)分割(ge)開來，防止(zhi)(zhi)混凝(ning)土(tu)中(zhong)的漿料流(liu)失。

當墻體(ti)厚度為(wei)(wei)250時(shi)，250/2-50-30=45㎜。止水(shui)(shui)鋼(gang)(gang)板(ban)(ban)(ban)與墻體(ti)間(jian)距離(li)偏小，施(shi)工(gong)時(shi)混凝土在(zai)該(gai)部位(wei)容易漏振，形(xing)成蜂窩(wo)孔洞。因此，在(zai)使(shi)用(yong)(yong)止水(shui)(shui)鋼(gang)(gang)板(ban)(ban)(ban)時(shi)，在(zai)施(shi)工(gong)縫(feng)(feng)部位(wei)必(bi)須加強振搗。該(gai)止水(shui)(shui)措施(shi)的薄弱環節為(wei)(wei)搭(da)接部位(wei)及90°轉角(jiao)(jiao)部位(wei)。鋼(gang)(gang)板(ban)(ban)(ban)八(ba)字(zi)角(jiao)(jiao)在(zai)90°轉角(jiao)(jiao)部位(wei)焊(han)縫(feng)(feng)極(ji)難控(kong)(kong)制，容易形(xing)成漏水(shui)(shui)點(dian)。鋼(gang)(gang)板(ban)(ban)(ban)轉角(jiao)(jiao)部位(wei)的焊(han)接施(shi)工(gong)應作(zuo)為(wei)(wei)該(gai)工(gong)序的關鍵部位(wei)予以控(kong)(kong)制。　　適用(yong)(yong)范圍(wei)：適用(yong)(yong)于有地(di)(di)下水(shui)(shui)的構筑物(wu)，防滲(shen)鋼(gang)(gang)板(ban)(ban)(ban)，如(ru)水(shui)(shui)池等有水(shui)(shui)的建筑，以及埋深在(zai)地(di)(di)下水(shui)(shui)位(wei)以下的水(shui)(shui)平(ping)和豎向(xiang)施(shi)工(gong)縫(feng)(feng)處。

使用止水鋼(gang)板要慎(shen)重，施(shi)工時要遵循(xun)以下的操作規范。

 在(zai)(zai)安裝止水鋼板之前應堅持(chi)干燥清(qing)潔的施工(gong)場(chang)地，積水、塵土(tu)及碎石(shi)等雜物的存在(zai)(zai)。

對止水鋼板進行檢查、審驗(yan)，選擇質量優良的保溫材(cai)料進行施工(gong)。

施工時應先對止水鋼板進行(xing)浸泡、去油(you)脫銹、然后(hou)再行(xing)復合(he)，保證其牢固(gu)度，并(bing)避免(mian)物理變形等問題。

在預(yu)埋條處進(jin)行止水(shui)(shui)鋼板(ban)的(de)切斷(duan)，切口須用密封(feng)材料(liao)進(jin)行處理，且所選用的(de)密封(feng)材料(liao)應與止水(shui)(shui)鋼板(ban)相適應、配套使用。