再生骨料强化技术及对再生混凝土性能影响研究综述

doi:10.13229/j.cnki.jdxbgxb.20231352

摘要/Abstract

摘要：

为厘清国内外关于再生骨料强化技术的研究进展，系统梳理了再生骨料强化方法及提质效能，评析了不同强化方法对再生骨料混凝土性能的影响规律，总结了现有强化方法在应用过程中存在的问题并提出了建设性意见，以期为研究者设计和开发绿色高性能再生骨料混凝土提供参考和依据。

关键词: 土木工程材料, 再生骨料, 强化技术, 提质效能, 再生骨料混凝土, 性能评价

Abstract:

To clarify the research progress of strengthening technology of recycled concrete aggregate， the strengthening methods of recycled concrete aggregate and its improvement effect were reviewed systematically. The effect of different strengthening treatments on the performance of recycled aggregate concrete was evaluated. The problems existing in the application of strengthening methods were summarized， and constructive suggestions were put forward to provide a scientific basis for researchers to design and develop green high-performance recycled aggregate concrete.

Key words: civil engineering material, recycled concrete aggregate, strengthening technology, improvement effect, recycled aggregate concrete, performance evaluation

中图分类号:

TU528

何子明,申爱琴,王路生,郭寅川,何江飞. 再生骨料强化技术及对再生混凝土性能影响研究综述[J]. 吉林大学学报(工学版), 2025, 55(3): 790-810.

Zi-ming HE,Ai-qin SHEN,Lu-sheng WANG,Yin-chuan GUO,Jiang-fei HE. Review on strengthening technology of recycled concrete aggregate and its effect on performance of recycled aggregate concrete[J]. Journal of Jilin University(Engineering and Technology Edition), 2025, 55(3): 790-810.

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强化原理	强化方法	主要材料、设备	文献
剥离旧砂浆	研磨处理	研磨机、球磨机、微波加热装置	［6-8］
剥离旧砂浆	酸溶液浸泡	盐酸、硫酸、磷酸、硝酸、乙酸	［9-11］
增强旧砂浆	裹浆处理	水泥、粉煤灰、纳米材料、矿粉	［12-14］
	微生物矿化沉积	好氧型微生物、厌氧型微生物	［15-17］
	加速碳化	二氧化碳、碳化装置	［18-20］
表面疏水隔离	聚合物乳液浸渍	聚乙烯醇、硅（氧）烷乳液、聚合硫酸铝	［21-23］

强化处理工艺		RCA取代率/%	坍落度增长率/%	文献
方法	条件	RCA取代率/%	坍落度增长率/%	文献
微波加热研磨	功率5 kW、加热400 s	100	-28.6	［68］
HCl溶液浸泡	浓度0.1 mol/L、浸泡1 d	100	3.6	［69］
CH₃COOH溶液浸泡	质量分数1%、浸泡1 d	100	25.0	［11］
水泥-硅灰浆液浸渍	浸渍30 min、干燥1 d、养护28 d	100	2.1	［69］
硫铝酸盐水泥浆液浸渍	水灰比0.8、浸渍5 min、干燥3 d	100	9.2	［38］
巴氏芽孢杆菌矿化沉积	浓度0.5 mol/L、pH值9.5、时间7 d	100	54.5	［70］
球形芽孢杆菌矿化沉积	细菌含量3×10⁸cells/mL	100	13.2	［15］
加速碳化	压力0.5/1/2/4 MPa、温度30 ℃、RCA初始含水率1.81%、时间1 h	100	5.3~26.3（低强） 3.0~9.1（高强）	［55］
加速碳化	压力75/150 kPa、时间30/90 min	100	57.1/50.0（30 min）35.7/50.0（90 min）	［71］

强化处理工艺		力学性能分类	RCA取代率/%	力学性能指标^* /MPa	28 d增长率/%	文献
方法	条件	力学性能分类	RCA取代率/%	力学性能指标^* /MPa	28 d增长率/%	文献
球磨研磨	钢球数10、转数500	抗压强度	20/40/60	32.9/27.9/24.8	20.1/37.3/54.0	［7］
球磨研磨	钢球数10、转数500	弹性模量	20/40/60	26 658/22 070/18 492	10.3/13.3/38.6	［7］
微波加热研磨	功率10 kW、时间1 min	抗压强度	20/40/60/80/100	56.0/51.9/47.8/43.6/39.5	5.2/11.2/18.2/26.6/36.7	［75］
		弯拉强度		6.11/5.92/5.73/5.54/5.35	1.1/2.3/3.6/4.9/6.4
		弹性模量		32 930/31 510/30 090/28 670/27 250	2.2/4.6/7.2/10.0/13.2
酸溶液浸泡（HCl/H₂SO₄）	浓度0.1 mol/L、浸泡1 d	抗压强度	100	20.2（7 d） 34.6（28 d） 37.5（56 d） 40.6（90 d）	12.9/18.8（7 d） 12.4/16.5（28 d） 10.1/13.6（56 d） 10.6/15.5（90 d）	［9］
酸溶液浸泡（HCl/H₂SO₄）	浓度0.1 mol/L、浸泡1 d	弹性模量	100	21 900（28 d）	20.1/38.8	［9］
酸溶液浸泡（HCl/HNO₃/H₂SO₄）	质量分数10%、浸泡1 d	抗压强度	100	—	18.0/18.5/20.0（90 d）	［76］
水泥-纳米SiO₂浆液浸渍	水灰比0.5、浸渍45 min、干燥≥3 d	抗压强度	100	35.5	14.3	［14］
纳米SiO₂-纳米CaCO₃浆液浸渍	水灰比9、浸渍45 min、干燥≥3 d	抗压强度	100	35.5	3.4	［14］
硅酸钠溶液浸泡	质量分数5%、浸泡5 h	抗压强度	30/50/70/100	33.8/32.4/31.6/31.8（低强） 40.5/39.1/35.2/34.1（高强）	5.9/5.6/9.8/7.9（低强） 4.9/14.1/19.6/18.2（高强）	［77］
球形芽孢杆菌矿化沉积	细菌含量 3×10⁸cells/mL	抗压强度	100	54	40.7	［15］
球形芽孢杆菌矿化沉积	细菌含量 3×10⁸cells/mL	弹性模量	100	33 200	32.8	［15］
加速碳化	压力0.5/1/2/4 MPa、温度30℃、RCA含水率1.81%、时间1 h	抗压强度	100	27.9（低强） 49.3（高强）	9.4/15.5/17.7/22.5（低强） 5.0/6.8/8.7/9.0（高强）	［55］
PVA乳液浸渍	质量分数10%、浸渍1 d、加压9.2×10⁴ Pa、烘干1 d/风干2 d	抗压强度	100	—	1.1/5.6（28 d） 4.4/8.8（90 d）	［21］
PVA乳液浸渍	质量分数10%、浸渍1 d、加压9.2×10⁴ Pa、烘干1 d/风干2 d	劈裂抗拉强度	100	—	-6.5/1.1（28 d） -8.9/2.0（90 d）	［21］
硅烷乳液浸渍	质量分数8%、浸渍1 d	抗压强度	30/50	—	-7.0/-3.0（56 d）	［22］

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