本文選題：新老混凝土　切入點：結合面　出處：《混凝土》2017年10期 　論文類型：期刊論文

【摘要】：新老混凝土結合面的黏結性能直接決定修補后的新老混凝土的黏結強度。新老混凝土結合面的黏結強度由很多因素決定。從新老混凝土界面的粗糙程度、采用的修補材料與界面劑的選擇以及界面植筋四方面進行了綜述,指出新混凝土強度對新老混凝土界面的黏結性能的影響有限,過分追求新混凝土強度不經(jīng)濟�？稍谛禄炷晾飺郊犹厥獠牧�,提高受力性能,有效約束開裂。界面植筋效果優(yōu)良,且為延性破壞,但結合面的黏結性能與植筋率的量化關系值得進一步研究。
[Abstract]:The bond strength of the new and old concrete bonding surface can directly determine the bond strength of the repaired new and old concrete. The bond strength of the new and old concrete bonding surface is determined by many factors. The selection of repair materials and interfacial agents and interfacial reinforcement are reviewed. It is pointed out that the strength of new concrete has limited effect on the bond properties of new and old concrete interface. The excessive pursuit of new concrete strength is not economical. Special materials can be added to the new concrete, which can improve the mechanical properties and effectively restrain the cracking. The effect of interfacial reinforcement planting is good, and it is ductile failure. However, the quantitative relationship between the bonding properties of the bonded surfaces and the percentage of tendons is worth further study.
【作者單位】： 上海理工大學環(huán)境與建筑學院;
【基金】：國家自然科學基金項目(51408359) 上海高校青年教師培養(yǎng)資助計劃項目(1015307801)
【分類號】：TU528
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本文編號：1584698