本文關(guān)鍵詞： 橡膠自密實混凝土 斷裂性能 品種 摻量 預(yù)處理　出處：《水利學(xué)報》2015年02期 　論文類型：期刊論文

【摘要】：通過橡膠自密實混凝土三點彎曲切口梁試驗,測取橡膠自密實混凝土的荷載-位移曲線和荷載-裂縫開口位移曲線,根據(jù)雙K斷裂模型計算其斷裂參數(shù)與斷裂能,研究不同類型、不同摻量的橡膠對自密實混凝土的斷裂性能的影響,并對比分析經(jīng)過氫氧化鈉溶液預(yù)處理與未處理的橡膠自密實混凝土斷裂性能的不同。試驗結(jié)果表明,橡膠的摻入使自密實混凝土的斷裂韌度、斷裂能增大,其增大的幅值與橡膠摻量、品種等有關(guān);氫氧化鈉溶液預(yù)處理可以改善橡膠自密實混凝土斷裂性能。
[Abstract]:The load-displacement curve and load-crack opening displacement curve of rubber self-compacting concrete were measured by three-point bending notch beam test of rubber self-compacting concrete. The fracture parameters and fracture energy of rubber self-compacting concrete were calculated according to the double-K fracture model. The effects of different types of rubber and different amount of rubber on the fracture properties of self-compacting concrete are studied, and the difference between pre-treated and untreated rubber self-compacting concrete with sodium hydroxide solution is compared. The experimental results show that the fracture behavior of self-compacting concrete is different from that of untreated concrete. The addition of rubber can increase the fracture toughness and fracture energy of self-compacting concrete, and the amplitude of the increase is related to the amount and variety of rubber, and the pretreatment of sodium hydroxide solution can improve the fracture property of rubber self-compacting concrete.
【作者單位】： 福州大學(xué)土木工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(51378126) 福州大學(xué)科技基金項目(XRC-0963)
【分類號】：TU528.0

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相關(guān)期刊論文 前3條

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本文編號：1532472