發(fā)布時(shí)間：2018-05-26 00:17

  本文選題：風(fēng)積沙 + 混凝土��； 參考：《硅酸鹽通報(bào)》2017年07期

【摘要】：用風(fēng)積沙(沙漠沙)部分或全部替代普通河砂拌制混凝土具有重大的社會(huì)與經(jīng)濟(jì)效益。沙漠地區(qū)環(huán)境氣候條件十分惡劣,研究風(fēng)積沙混凝土在復(fù)雜環(huán)境下的耐久性能意義重大。設(shè)計(jì)制作了不同風(fēng)積沙摻量(0、20%、40%、60%、80%、100%)的混凝土試塊,并標(biāo)準(zhǔn)養(yǎng)護(hù)28 d,研究在實(shí)驗(yàn)室加速碳化3 d、7 d、14 d、21 d和28 d后的碳化規(guī)律。運(yùn)用MATLAB擬合得到了風(fēng)積沙混凝土的CO_2擴(kuò)散系數(shù)隨風(fēng)積沙摻量變化的數(shù)學(xué)表達(dá)式,并建立了以風(fēng)積沙摻量為主要參數(shù)的碳化深度預(yù)測(cè)模型。模型的建立為風(fēng)積沙混凝土在沙漠及周邊區(qū)域的推廣應(yīng)用提供重要的參考。
[Abstract]:It is of great social and economic benefit to substitute part or all of aeolian sand (desert sand) for ordinary river sand to make concrete. The study on the durability of eolian sand concrete in complex environment is of great significance. The concrete samples with different amount of eolian sand were designed and manufactured, and the carbonation law was studied after accelerated carbonization in laboratory for 3 days, 7 days, 14 days, 21 days and 28 days, and the standard curing time was 28 days. The mathematical expression of the variation of CO_2 diffusion coefficient with the amount of eolian sand in eolian sand concrete is obtained by MATLAB fitting, and the prediction model of carbonation depth with the main parameter of eolian sand content as the main parameter is established. The establishment of the model provides an important reference for the spreading and application of eolian sand concrete in desert and surrounding areas.
【作者單位】： 內(nèi)蒙古農(nóng)業(yè)大學(xué)水利與土木建筑工程學(xué)院;內(nèi)蒙古建筑職業(yè)技術(shù)學(xué)院建筑工程學(xué)院;內(nèi)蒙古工業(yè)大學(xué)土木工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(51569021,51468049) 教育部創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃(IRT13069)
【分類(lèi)號(hào)】：TU528

【參考文獻(xiàn)】

相關(guān)期刊論文 前7條

1 吳俊臣;申向東;董偉;郝，

本文編號(hào)：1935211