本文關(guān)鍵詞： 鋰渣混凝土 試配 配合比設(shè)計(jì) 抗壓強(qiáng)度　出處：《混凝土》2017年01期 　論文類型：期刊論文

【摘要】：為了配制出抗壓強(qiáng)度達(dá)到C30~C60、坍落度達(dá)到35~55 mm的鋰渣混凝土,首先測定鋰渣的材料性能,從而分析鋰渣的需水量情況,得知鋰渣需水量較大、吸水性較強(qiáng);其次結(jié)合鋰渣材料的特性并依據(jù)國家規(guī)范和相關(guān)經(jīng)驗(yàn)初步確定出鋰渣混凝土配合比;最后依據(jù)初步確定的配合比進(jìn)行混凝土試配,并使用減水劑調(diào)節(jié)鋰渣混凝土的坍落度;經(jīng)過試配和調(diào)整,使鋰渣混凝土滿足和易性和坍落度的要求,從而確定鋰渣混凝土的配合比。并依據(jù)鋰渣混凝土的配合比制備鋰渣混凝土,測定其抗壓強(qiáng)度。結(jié)果表明:最終確定的鋰渣混凝土配合比可以制備出滿足工作性和強(qiáng)度要求的混凝土;并且鋰渣混凝土抗壓強(qiáng)度整體較高,其前期強(qiáng)度比普通混凝土的抗壓強(qiáng)度低或與其相當(dāng),其后期強(qiáng)度大于普通混凝土。
[Abstract]:In order to prepare lithium slag concrete with compressive strength of C30 and C60 and slump of 35 ~ 55mm, the material properties of lithium slag were measured firstly, and the water requirement of lithium slag was analyzed. It was found that the water requirement of lithium slag was high and the water absorption was strong. Secondly, according to the characteristics of lithium slag material and according to the national code and relevant experience, the mix ratio of lithium slag concrete is preliminarily determined, and the slump of lithium slag concrete is adjusted by water reducer. Through the test and adjustment, the lithium slag concrete can meet the requirements of ease and slump, so as to determine the mix ratio of lithium slag concrete, and according to the mix ratio of lithium slag concrete to prepare lithium slag concrete, The results show that the final ratio of lithium slag concrete can be used to produce concrete that meets the requirements of workability and strength, and the overall compressive strength of lithium slag concrete is relatively high. Its early strength is lower or equal to that of ordinary concrete, and its later strength is higher than that of ordinary concrete.
【作者單位】： 華東交通大學(xué)土木建筑學(xué)院建筑過程模擬與控制省重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金項(xiàng)目(51468017,51378206) 江西省重大基金項(xiàng)目(20133BCB24008,20143ACB20008)
【分類號(hào)】：TU528

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本文編號(hào)：1510600