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保障地坪承建工程質量的兩大關鍵因素:技術和驗收

2011-10-12 14:52:32  來源:  字號:【69免費視頻:  69免費視頻:  69免費視頻:】  瀏覽:59

    地坪從材料角度可分為耐磨顆粒添加劑型、高分子聚合物型,其中后者在用量上居主要地位,而環氧樹脂基材地坪又是后者用量最大的。由于地坪生產施工企業眾多、素質參次不齊,造成地坪質量問題較為突出,其中環氧樹脂地坪量問題更多一些。如何避免和解決?解決的因素甚多,應從地坪面工程的技術要求和質量檢驗做起,也就是確定標準并按此驗收。
    耐磨顆粒添加劑型地面工程技術要求和質量檢驗,首先可參照GB50209-95《建筑地面工程施工及驗收規范》的工程驗收:檢查采用材料和完成樓地面各層構造是否符合設計要及及規范的規定;檢查地面各層的強度和密度以及上下層結合的牢固性;地面的坡度、厚度、標高和平整度,厚度與設計厚度允許偏差為該層厚度的10%;耐磨顆粒添加劑型地面的平整度,無特殊要求的面層2m直尺檢查允許偏差為4mm;帶有坡度的面層應做潑水試驗,并以能排除液體為合格。還可參照GB50209-2002《建筑地面工程質量驗收規范》的工程驗收可參照防油滲面層涂層允許偏差和檢驗方法:表面平整度5mm(估計是土建基層平整度要求);涂層與基層粘結牢固檢驗方法觀察檢查(不符合涂層質量檢驗方法);5.6.6條防油滲面層采用防油滲涂料時,涂層厚度宜為5~7mm,允許偏差無技術要求,涂層涂裝對此厚度無先例。
    高(gao)分子聚(ju)(ju)(ju)合物(wu)型地(di)(di)(di)面(mian)(mian)(mian)技術要求和質(zhi)(zhi)(zhi)量(liang)(liang)檢(jian)驗(yan)(yan),則可(ke)參照(zhao):GB50209-95《建(jian)筑地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)及驗(yan)(yan)收規范(fan)》,其高(gao)分子聚(ju)(ju)(ju)合物(wu)型涂(tu)層(ceng)地(di)(di)(di)面(mian)(mian)(mian)除了3.1-3條內容之外基(ji)本(ben)相似,涂(tu)層(ceng)地(di)(di)(di)面(mian)(mian)(mian)無(wu)特殊要求的表面(mian)(mian)(mian)平整度(du)2m直尺(chi)檢(jian)查允許偏(pian)差為2mm;GB50209-2002《建(jian)筑地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)驗(yan)(yan)收規范(fan)》刪去了此類內容,防油滲(shen)面(mian)(mian)(mian)層(ceng)部分僅為5.6.6條及5.6.10條。建(jian)筑地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)及驗(yan)(yan)收規范(fan)對地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)檢(jian)查的內容如抗壓(ya)強度(du)、抗折強度(du)、粘結強度(du)、耐磨性、彈性模量(liang)(liang)、線膨(peng)脹系(xi)數(shu)均(jun)為材(cai)料實驗(yan)(yan)室測(ce)試(shi)(shi)數(shu)據,沒有可(ke)供現場(chang)(chang)檢(jian)測(ce)的儀器(qi)和試(shi)(shi)驗(yan)(yan)方(fang)法(fa),只能當地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)引(yin)起訴訟時現場(chang)(chang)取樣(yang)(yang)檢(jian)測(ce)。這(zhe)類工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)管(guan)理可(ke)以由施(shi)工(gong)(gong)(gong)方(fang)在工(gong)(gong)(gong)程監理到場(chang)(chang),現場(chang)(chang)按檢(jian)測(ce)試(shi)(shi)樣(yang)(yang)尺(chi)寸(cun)制作,監理對試(shi)(shi)樣(yang)(yang)材(cai)料認(ren)同,試(shi)(shi)樣(yang)(yang)養護、封存,監理決定以試(shi)(shi)樣(yang)(yang)檢(jian)測(ce)數(shu)據考核(he)地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)。高(gao)分子聚(ju)(ju)(ju)合物(wu)型地(di)(di)(di)面(mian)(mian)(mian)工(gong)(gong)(gong)程質(zhi)(zhi)(zhi)量(liang)(liang)檢(jian)驗(yan)(yan)現場(chang)(chang)可(ke)檢(jian)測(ce)數(shu)據的有涂(tu)層(ceng)光澤(ze)、色澤(ze)偏(pian)差、表面(mian)(mian)(mian)硬度(du)(鉛筆硬度(du))、附著(zhu)力(劃(hua)格法(fa))、耐磨性監理到場(chang)(chang),現場(chang)(chang)按檢(jian)測(ce)試(shi)(shi)樣(yang)(yang)對照(zhao)備查。

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