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(河北農(nóng)業(yè)大學(xué)城鄉(xiāng)建設(shè)學(xué)院, 保定 071001)

摘要: 以唐山地區(qū)的鐵尾礦粉、鐵尾礦砂、鐵尾礦石分別替代粉煤灰、河砂、碎石作為混凝土的摻合料及粗細(xì)骨料,研究鐵尾礦對(duì)混凝土與鋼筋粘結(jié)性能的影響. 結(jié)果表明:尾礦粉混凝土與鋼筋的粘結(jié)性能比粉煤灰混凝土差;而尾礦粉-尾礦砂混凝土與鋼筋的粘結(jié)性能優(yōu)于尾礦粉混凝土;全尾礦混凝土與鋼筋的粘結(jié)性能優(yōu)于尾礦粉-尾礦砂混凝土且優(yōu)于粉煤灰混凝土.

關(guān)鍵詞: 鐵尾礦; 拔出試驗(yàn); 粘結(jié)性能; 破壞形態(tài)

中圖分類號(hào):TU528. 041 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)10-0086-05

DOI:10. 19701 / j. jzjg. 20201421

Experimental study on the influence of iron tailing on the bonding performance between concrete and steel bar

SUN Jianheng, DUAN Yajing, DUN Chenyang, GUO Yao, MA Xinxin

(Urban and Rural Construction Institute, Hebei Agricultural University, Baoding 071001, China)

Abstract: The iron tailings powder, iron tailings sand and iron tailings in Tangshan area were used to replace fly ash, riversand and gravel respectively as admixture and coarse aggregate of concrete. The influence of iron tailings on the bondingperformance between concrete and steel bar had been studied. The results show that the bonding performance of iron tailingspowder concrete and steel bar is a little worse than that of fly ash concrete, while that of iron tailings powder-iron tailingssand concrete and steel bar is better than that of iron tailings powder concrete. The bonding performance of full iron tailingsconcrete and steel bar is better than that of iron tailings powder-iron tailings sand concrete and fly ash concrete.Keywords:iron tailing; pullout test; bonding performance; failure mode

∗河北省重點(diǎn)研發(fā)計(jì)劃(19211502D).

通信作者:孫建恒,博士,教授,博士生導(dǎo)師,主要從事混凝土結(jié)構(gòu)與鋼結(jié)構(gòu)研究,Email:sjh@ hebau. edu. cn.

[引用本文] 孫建恒,段雅靜,敦晨陽,等. 鐵尾礦對(duì)混凝土與鋼筋粘結(jié)性能影響試驗(yàn)研究[J]. 建筑結(jié)構(gòu),2023,53(10):86-90. SUN Jianheng,DUAN Yajing,DUN Chenyang,et al. Experimental study on the influence of iron tailing onthe bonding performance between concrete and steel bar[J]. Building Structure,2023,53(10):86-90.