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"index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="jnzb9vn" class="twoCol"><div id="8iqx4yk" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jzjc/">建筑、建材</a>?<a href="http://www.cdcfah.com/cp/second-jzjc_qzcl/">砌筑材料</a>?<a href="http://www.cdcfah.com/cp/third-qzcl_hntzp/">混凝土制品</a>?上海鏤空板UHPC 信息推薦上海卓歐建筑裝飾工程供應(yīng)</p><div id="6yvh978" class="leftbox clearfix"><h1>上海鏤空板UHPC 信息推薦上海卓歐建筑裝飾工程供應(yīng)</h1><div id="vz7wdfc" class="proBig"><div id="53kapl3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shzojz/637365647013583985/826107.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mk8ero8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shzojz/637365647013583985/826107.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jivsxda" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海鏤空板UHPC,UHPC</p><p><span>***更新：</span>2021-02-02 06:13:43</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="azwi9of" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海卓歐建筑裝飾工程有限公司</a></p><p><span>聯(lián)系人：</span>汪總</p><p><span>郵箱: </span>904111648@qq.com</p><p><span>電話: </span>18502131259</p><p><span>傳真: </span>021_59220082</p><p><span>網(wǎng)址: </span>http://www.zhuoou88.com</p><p><span>手機(jī): </span>021-61531378</p><p><span>地址: </span>新勝路237號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="oivshdk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="hrjlamt" class="box"><p><p style="text-indent:25px">UHPC稱為超高性能混凝土，上海鏤空板UHPC，也稱作活性粉末混凝土，不使用粗骨料，必須使用硅灰和纖維(鋼纖維或復(fù)合有機(jī)纖維)，水泥用量較大，水膠比很低。超高性能混凝土的設(shè)計(jì)理論是比較大堆積密度理論，其組成材料不同粒徑顆粒以比較好比例形成比較緊密堆積，上海鏤空板UHPC，即毫米級(jí)顆粒(骨料)堆積的間隙由微米級(jí)顆粒(水泥、粉煤灰、礦粉)填充，微米級(jí)顆粒堆積的間隙由亞微米級(jí)顆粒(硅灰)填充，上海鏤空板UHPC。從這里可以看出孔隙率是發(fā)泡混凝土與超高性能混凝土的重要區(qū)別之一。目前超高性能混凝土構(gòu)件已用于某地鐵工程（疏散平臺(tái)、軌道板等）。上海鏤空板UHPC</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鏤空板UHPC,UHPC" src="https://tyunfile.71360.com/UploadFile/shzojz/637365647013583985/826107.png"></div><p style="text-indent:25px">UHPC具有力學(xué)性能。由于混凝土是一種非均質(zhì)材料,強(qiáng)度受諸多因素的影響，水灰比是影響混凝土強(qiáng)度的主要因素，對(duì)于普通混凝土，隨著水灰比的降低，混凝土的抗壓強(qiáng)度增大，高性能混凝土中的高效減水劑對(duì)水泥的分散能力強(qiáng)、減水率高，可大幅度降低混凝土單方用水量。在高性能混凝土中摻入礦物超細(xì)粉可以填充水泥顆粒之間的空隙，改善界面結(jié)構(gòu)，提高混凝土的密實(shí)度，提**度。體積穩(wěn)定性。高性能混凝土具有較高的體積穩(wěn)定性，即混凝土在硬化早期應(yīng)具有較低的水化熱，硬化后期具有較小的收縮變形。上海鏤空板UHPCUHPC通過提高組分的細(xì)度與活性，不使用粗骨料，使材料內(nèi)部的缺陷(孔隙與微裂縫)減到較少。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鏤空板UHPC,UHPC" src="https://tyunfile.71360.com/UploadFile/shzojz/637365646986201172/2220700.png"></div><p style="text-indent:25px">超高性能混凝土（UHPC）是指抗壓強(qiáng)度大于100MPa，各項(xiàng)性能都十分優(yōu)良的一種混凝土材料。以二航局修建的怒江二橋工程為例，重點(diǎn)介紹了在此工程中UHPC的原材料組成、配制方法、模型實(shí)驗(yàn)及現(xiàn)場(chǎng)澆筑施工等應(yīng)用情況。對(duì)UHPC材料在橋梁工程中的應(yīng)用前景進(jìn)行了展望。超高性能混凝土（Ultra-HighPerformanceConcrete，簡(jiǎn)稱UHPC），不同于普通混凝土，是指抗壓強(qiáng)度大于100MPa，各方面性能都十分優(yōu)良的混凝土。UHPC較早于1993年由法國(guó)的皮埃爾·理查德研究小組研制而成。加拿大利用UHPC材料修建了第1座UHPC景觀橋，隨后美國(guó)、歐洲等國(guó)也在一些公路橋梁等工程中開展了實(shí)際應(yīng)用。</p><p style="text-indent:25px">UHPC是具有超**度，**吸水率，較好耐久性和耐侵蝕性能的特殊混凝土。目前在建筑設(shè)計(jì)領(lǐng)域(區(qū)別于結(jié)構(gòu)領(lǐng)域)使用的UHPC的抗壓強(qiáng)度大于120，抗折強(qiáng)度大于25MPa。雖然UHPC可以達(dá)到很高的抗壓強(qiáng)度，但對(duì)于纖薄建筑構(gòu)件，主要利用的是UHPC的抗折強(qiáng)度。在實(shí)際應(yīng)用中，UHPC基體的超**度通過小摻量的耐堿玻璃纖維，聚乙烯醇纖維，鋼纖維進(jìn)一步得到增強(qiáng)和增韌。由于美觀和防火的原因，耐堿玻璃纖維在建筑UHPC中使用比較為普遍。由于UHPC的基體強(qiáng)度遠(yuǎn)遠(yuǎn)高于普通GRC(玻璃纖維增強(qiáng)水泥)，它所使用的纖維摻量明顯比GRC中少。三維的HUPC構(gòu)件也可以配筋，比如鋼筋，玻璃纖維或碳纖維棒，或者采用預(yù)應(yīng)力，但是這些配筋通常在UHPC建筑構(gòu)件中并不必要。在高性能混凝土的施工過程中，施工人員的技術(shù)水平有限，養(yǎng)護(hù)措施不到位，使HPC的密實(shí)性和質(zhì)量不穩(wěn)定。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海鏤空板UHPC,UHPC" src="https://tyunfile.71360.com/UploadFile/shzojz/637365647009306641/7723516.png"></div><p style="text-indent:25px">UHPC究竟能達(dá)到怎樣的“超高”性能呢？1.耐久性超高。正如上段文字所述，UHPC的特殊配方是將材料分子進(jìn)行有規(guī)律的排列從而使產(chǎn)品有極高的耐久性和極低的穿透性。這使材料潮濕，海邊，冰雹，化學(xué)廠區(qū)等極端環(huán)境下依然有著良好的性能。2.自愈能力超高。UHPC中添加了短而細(xì)的鋼筋微纖維，它低孔隙度可以防止腐蝕和氧化，并能在損壞時(shí)“再生”。這就是傳說中的UHPC的“自愈能力”，它自愈的原理是利用空氣中的濕度進(jìn)一步水化反應(yīng)，因此能夠保持其初始強(qiáng)度甚至在極端環(huán)境中也能被使用。UHPC應(yīng)采用必要措施避免水份進(jìn)到運(yùn)送儲(chǔ)罐或蒸發(fā)。上海鏤空板UHPC</p><p style="text-indent:25px">UHPC其抗壓強(qiáng)度范圍為117~152MPa，這將是傳統(tǒng)混凝土抗壓強(qiáng)度的5倍。上海鏤空板UHPC</p><p style="text-indent:25px">UHPC的初期收縮關(guān)鍵在于重視的是自收縮，利用內(nèi)部養(yǎng)護(hù)和減縮劑有利于減少UHPC的自收縮，應(yīng)用混凝土膨脹劑則能夠補(bǔ)充收縮。1）科學(xué)研究用高高吸水率樹脂(SAP)帶進(jìn)額外水分利用內(nèi)養(yǎng)護(hù)，能夠有效減少UHPC的自收縮。研究結(jié)果涵蓋：SAP內(nèi)養(yǎng)護(hù)減少自收縮的力度，隨SAP帶進(jìn)額外水分的增強(qiáng)而加大；內(nèi)養(yǎng)護(hù)UHPC的干縮相對(duì)大，但總收縮相對(duì)小，增加養(yǎng)護(hù)時(shí)間能夠減少干縮和總收縮；SAP干躁后，在UHPC內(nèi)部生成出氣孔，會(huì)減少抗壓強(qiáng)度；假如SAP劑量和帶進(jìn)額外水量適當(dāng)(該科學(xué)研究SAP攝入量為水泥凈重0.3%，帶進(jìn)額外水量增強(qiáng)混凝土水灰比0.04)，則UHPC抗壓強(qiáng)度與抗折強(qiáng)度*有輕微減少。上海鏤空板UHPC</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3122756.html</p></div></div></div></div></div><div id="sgdapg7" class="page-right twoColRt"><div id="onpwdfx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fkrtv8t" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" 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