第三期_2022_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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第三期

基于三元骨料体系的LC60轻骨料混凝土性能试验研究

王宏1,2，王丹丹3，朱平1,2，何长龙1,2，王桂敏1,2，盖梅香1,2，孙晓光1,2

2022年第3期

摘要

引用本文

摘要：研究了铁尾矿砂、浮石、粉煤灰陶粒对轻骨料混凝土抗压强度、劈裂抗拉强度、弹性模量和干表观密度的影响，并利用Design-Expert软件对配合比进行了优化。结果表明：随着粉煤灰陶粒相对掺量的增加，轻骨料混凝土的力学性能提高，干表观密度增大；随着浮石相对掺量的增加，轻骨料混凝土的力学性能降低，干表观密度减小；随着砂率的增大，轻骨料混凝土的干表观密度增大，且当砂率为40%时，轻骨料混凝土的力学性能达到最佳；Design-Expert软件优化结果表明，当粉煤灰陶粒与浮石的质量比为3.13、砂率为36%时，可制备出力学性能较优且干表观密度较低的轻骨料混凝土。 Abstract: The effects of iron tailing sand, pumice and fly ash ceramsite on the compressive strength, splitting tensile strength, elastic modulus and dry apparent density of lightweight aggregate concrete were studied, and the mix proportion was optimized by using Design-Expert software. The results show that the mechanical properties and dry apparent density of lightweight aggregate concrete increase with the increase of the relative content of fly ash ceramsite. With the increase of pumice relative content, the mechanical properties and dry apparent density of lightweight aggregate concrete decrease. With the increase of sand ratio, the dry apparent density of lightweight aggregate concrete increases, and the mechanical properties of lightweight aggregate concrete reach the best when the sand ratio is 40%. The optimization results of Design-Expert software show that when the mass ratio of fly ash ceramsite to pumice is 3.13 and the sand ratio is 36%, the lightweight aggregate concrete with excellent mechanical properties and low dry apparent density can be prepared.

王宏,王丹丹,朱平,等.基于三元骨料体系的LC60轻骨料混凝土性能试验研究[J].混凝土与水泥制品,2022(3):96-100 WANG H,WANG D D,ZHU P,et al.Experimental Study on Performance of LC60 Lightweight Aggregate Concrete Based on Ternary Aggregate System[J].China Concrete and Cement Products,2022(3):96-100.

水稻秸秆对硫氧镁泡沫轻质保温材料性能的影响

姜俊玮1，张鑫1,2，刘巧玲1,2，类成邦1，任建国1

2022年第3期

摘要

引用本文

摘要：研究了水稻秸秆体积掺量对硫氧镁泡沫轻质保温材料性能的影响，测试了掺水稻秸秆硫氧镁泡沫轻质保温材料的干缩量、吸水率、导热系数、抗压强度、抗折强度，并进行了微观孔结构试验。结果表明：随着水稻秸秆体积掺量的增加，硫氧镁泡沫轻质保温材料的干缩量、吸水率、导热系数和抗压强度均逐渐降低，抗折强度在一定范围内有所增加；水稻秸秆的理想体积掺量为15%~45%。 Abstract: The effect of rice straw volume content on the performance of magnesium oxysulfide foam lightweight insulation materials was studied. The dry shrinkage, water absorption, thermal conductivity, compressive strength and flexural strength of the magnesium oxysulfide foam lightweight insulation materials mixed with rice straw were tested, and the microscopic pore structure test was carried out. The results show that with the increase of rice straw volume content, the dry shrinkage, water absorption, thermal conductivity and compressive strength of the magnesium oxysulfide foam lightweight insulation materials gradually decrease, but the flexural strength increases within a certain range. The reasonable volume content of rice straw is 15%~45%.

姜俊玮,张鑫,刘巧玲,等.水稻秸秆对硫氧镁泡沫轻质保温材料性能的影响[J].混凝土与水泥制品,2022(3):91-95. JIANG J W,ZHANG X,LIU Q L,et al.Effect of Rice Straw on Performance of Magnesium Oxysulfide Foam Lightweight Insulation Materials[J].China Concrete and Cement Products,2022(3):91-95.

脱硫石膏基超硫酸盐水泥混凝土强度和抗碳化性能研究

王亮1，周扬2,3，彭泽川2,3，陈鲁川1, 孙启亮1

2022年第3期

摘要

引用本文

王亮,周扬,彭泽川,等.脱硫石膏基超硫酸盐水泥混凝土强度和抗碳化性能研究[J].混凝土与水泥制品,2022(3):85-90. WANG Liang, ZHOU Yang, PENG Ze-chuan,et al.Study on the Strength and Carbonation Resistance of Desulfurized Gypsum-based Supersulfate Cement Concrete[J].China Concrete and Cement Products,2022(3):85-90.

北京地区装配整体式混凝土剪力墙结构设计

白焕一

2022年第3期

摘要

引用本文

摘要：结合具体工程案例阐述了北京地区装配整体式混凝土剪力墙住宅的结构设计流程，提出了装配整体式混凝土剪力墙结构施工时应注意的几个问题，可为其他地区装配整体式混凝土剪力墙的工程应用提供参考。 Abstract: Combined with specific engineering cases, the structural design process of the assembled integral concrete shear wall residential buildings in Beijing is expounded, and several problems that should be paid attention to in the construction of the assembled integral concrete shear wall structure are put forward, which can provide a reference for the engineering application of assembled integral concrete shear wall in other areas.

白焕一.北京地区装配整体式混凝土剪力墙结构设计[J].混凝土与水泥制品,2022(3):80-84. BAI H Y.Structural Design of Assembled Integral Concrete Shear Wall in Beijing[J].China Concrete and Cement Products,2022(3):80-84.

石膏基聚苯颗粒砂浆及其墙板性能试验研究

郑允宅

2022年第3期

摘要

引用本文

摘要：以轻钢龙骨和钢板网为骨架，石膏基聚苯颗粒砂浆为填充材料制备两种构造形式的新型复合墙板，并对其抗弯承载性能、隔声性能和耐火性能进行了研究。结果表明：石膏基聚苯颗粒砂浆的干密度、导热系数和抗压强度均随着聚苯颗粒掺量的增加而降低，且聚苯颗粒的最佳掺量为0.8%；两种构造形式复合墙板的破坏荷载与自重荷载的比值达到7.0以上；两种构造形式复合墙板的空气声计权隔声量达40 dB以上，耐火极限可达2 h。 Abstract: Two kinds of new composite wall panels were prepared with light steel keel and expanded metal mesh as the skeleton and gypsum-based polystyrene particle mortar as the filling material, and their flexural bearing performance, sound insulation performance and fire resistance performance were studied. The results show that the dry density, thermal conductivity and compressive strength of gypsum-based polystyrene particle mortar decrease with the increase of polystyrene particle content, and the optimum content of polystyrene particle is 0.8%. The ratio of the failure load to the self-weight load of the composite wall panels of the two structural forms is above 7.0. The air acoustic meter weight sound insulation of the composite wall panels of the two structural forms is more than 40 dB, and the fire resistance limit can reach 2 hours.

郑允宅.石膏基聚苯颗粒砂浆及其墙板性能试验研究[J].混凝土与水泥制品,2022(3):76-79,84. ZHENG Y Z.Experimental Study on Properties of Gypsum-based Polystyrene Particle Mortar and Its Wall Panels[J].China Concrete and Cement Products,2022(3):76-79,84.

多腔式双钢板组合剪力墙抗震试验与仿真

郭雄伟1，张先龙1，徐文平1，陈凯2，谢月明1

2022年第3期

摘要

引用本文

摘要：为了验证多腔式双钢板组合剪力墙的抗震优越性，制作了钢筋混凝土剪力墙和多腔式双钢板组合剪力墙，通过低周反复水平荷载试验，获得了两种剪力墙的破坏形态、滞回曲线和骨架曲线；建立了ABAQUS有限元模型，进行了多腔式双钢板组合剪力墙的抗震试验仿真分析，模拟了其破坏形态和累计损伤状态。结果表明：多腔式双钢板组合剪力墙具有承载力大、延性好、耗能强等优点；构件最终破坏时，虽然管内混凝土受压塑性变形发展较大，导致外侧双钢板明显臌胀，但管内混凝土并没有压碎，可以继续工作承担荷载；构件的最终破坏形态为受拉钢板撕裂破坏，属于延性破坏。 Abstract: In order to verify the seismic superiority of multi cavity double steel plate composite shear wall, a reinforced concrete shear wall and multi cavity double steel plate composite shear wall were made, and the failure modes, hysteresis curves and skeleton curves of two shear walls were obtained through low cycle repeated horizontal load tests. The ABAQUS finite element model was established to simulate the seismic test of multi cavity double steel plate composite shear wall, and its failure mode and cumulative damage state were simulated. The results show that the multi cavity double steel plate composite shear wall has the advantages of large bearing capacity, good ductility and strong energy consumption. When the component is finally damaged, although the compressive plastic deformation of the concrete in the pipe develops greatly and leads to the obvious heave of the outer double steel plate, the concrete in the pipe is not crushed and can continue to work and bear the load. The final failure form of the component is the tearing failure of the tensile steel plate, which is a ductile failure.

郭雄伟,张先龙,徐文平,等.多腔式双钢板组合剪力墙抗震试验与仿真[J].混凝土与水泥制品,2022(3):71-75. GUO X W,ZHANG X L,XU W P,et al.Seismic Test and Simulation Analysis of Multi Cavity Double Steel Plate Composite Shear Walls[J].China Concrete and Cement Products,2022(3):71-75.

分散剂对碳纤维水泥砂浆力学性能及压敏性的影响研究

金春福1，阎石2，张世洋2,3

2022年第3期

摘要

引用本文

摘要：研究了分散剂的种类（HPMC、MC、HEC）和掺量（0、0.2%、0.4%）对碳纤维水泥砂浆（CFRM）力学性能和压敏性的影响。结果表明：当分散剂掺量为0.2%时，掺HPMC和MC的CFRM试件抗压、抗折强度均高于基准组，其中，HPMC对力学性能的提升效果最好；各组试件的电阻变化率均随着应力的增大而减小，其中，HPMC掺量为0.2%的试件灵敏度最高。综合考虑，采用0.2%的HPMC时，CFRM的力学性能和压敏性达到最佳。 Abstract: The effects of the types (HPMC, MC, HEC) and content (0, 0.2%, 0.4%) of dispersants on the mechanical properties and pressure sensitivity of carbon fiber cement mortar (CFRM) were studied. The results show that when the content of dispersant is 0.2%, the compressive and flexural strength of CFRM mixed with HPMC and MC are higher than those of the reference group, and HPMC has the best effect on improving the mechanical properties of CFRM. The resistance change rate of the specimens decreases with the increase of stress, and the sensitivity of the specimens with HPMC content of 0.2% is the highest. Considering comprehensively, when 0.2% HPMC is used, the mechanical properties and pressure sensitivity of CFRM are the best.

金春福,阎石,张世洋.分散剂对碳纤维水泥砂浆力学性能及压敏性的影响研究[J].混凝土与水泥制品,2022(3):66-70. JIN C F,YAN S,ZHANG S Y.Effect of Dispersant on Mechanical Properties and Pressure Sensitivity of Carbon Fiber Reinforced Cement Mortar[J].China Concrete and Cement Products,2022(3):66-70.

混杂纤维活性粉末混凝土与普通混凝土界面黏结性能研究

王欣1,2，吴楠1，刘国安1，陈国斌3，张国强3，岳庆霞1

2022年第3期

摘要

引用本文

摘要：通过劈裂抗拉强度试验研究了普通混凝土（NC）强度等级和界面处理方式对混杂纤维活性粉末混凝土（HFRPC）与NC界面黏结性能的影响。结果表明：与凿毛、露骨料、切槽界面处理方式相比，植筋HFRPC-NC试件的劈裂抗拉强度最高，为NC试件破坏强度的1.15~1.22倍，且破坏模式为延性破坏；对于界面粗糙度不同的凿毛、露骨料、切槽三种界面处理方式，HFRPC-NC试件的劈裂抗拉强度可达NC试件破坏强度的70%~92%，且劈裂抗拉强度随界面粗糙度的增大而增大；HFRPC-NC试件的劈裂抗拉强度随NC强度等级的提高而增大。 Abstract: Through the splitting tensile strength tests, the effects of strength grade of ordinary concrete(NC) and interface treatment methods on the interface bonding performance of hybrid fiber reactive powder concrete (HFRPC) and NC were studied. The results show that compared with the interface treatment methods of roughing, exposing aggregated and cutting groove, the splitting tensile strength of planting reinforcement HFRPC-NC specimen is the highest, which is 1.15~1.22 times the failure strength of NC specimen, and the failure mode is ductile failure. For the three interface treatment methods of roughing, exposing aggregated and cutting groove with different roughness, the splitting tensile strength of HFRPC-NC specimen can reach 70%~92% of the failure strength of NC specimen, and the splitting tensile strength increases with the increase of the interface roughness. The splitting tensile strength of HFRPC-NC specimens increases with the increase of NC strength grade.

王欣,吴楠,刘国安,等.混杂纤维活性粉末混凝土与普通混凝土界面黏结性能研究[J].混凝土与水泥制品,2022(3):61-65. WANG Xin, WU Nan, LIU Guo-an,et al.Study on the Interfacial Bonding Performance of Hybrid Fiber Reactive Powder Concrete and Ordinary Concrete[J].China Concrete and Cement Products,2022(3):61-65.

玄武岩纤维高性能混凝土轴拉和抗冲击韧性试验研究

于跟社1,2，邓宗才3，王珏2，王亚楠2

2022年第3期

摘要

引用本文

摘要：研究了玄武岩纤维掺量对混凝土轴拉性能和抗冲击韧性的影响，观察了试件拉伸与冲击的破坏形态，测得了试件的轴拉强度、破坏冲击次数等指标。结果表明：随着玄武岩纤维掺量的增加，混凝土的轴拉强度先增大后减少；当玄武岩纤维掺量为5 kg/m3和10 kg/m3时，试件的轴拉强度相比素混凝土的轴拉强度分别提高了24.41%和50.17%；当玄武岩纤维掺量为15 kg/m3时，试件的轴拉强度相比素混凝土的轴拉强度降低了3.73%；各试件的冲击破坏裂缝均出现在试件中部；与素混凝土相比，玄武岩纤维掺量为5 kg/m3和10 kg/m3试件的破坏冲击次数分别增加了46.29%和69.66%，抗冲击韧性的改善效果明显；当玄武岩纤维掺量为15 kg/m3时，由于纤维分散不够均匀，导致试件的破坏冲击次数降低。 Abstract: The effects of basalt fiber content on the axial tensile properties and impact toughness of concrete were studied. The failure modes of tensile and impact of the specimens were observed, and the tensile strength and failure impact times of the specimens were measured. The results show that the tensile strength of concrete increases first and then decreases with the increase of basalt fiber content. When the content of basalt fiber is 5 kg/m3 and 10 kg/m3, the tensile strength of specimens is increased by 24.41% and 50.17% respectively compared with that of plain concrete. When the content of basalt fiber is 15 kg/m3, the tensile strength of the specimen is 3.73% lower than that of plain concrete. The impact failure cracks of each specimen appear in the middle of the specimen. Compared with plain concrete, the failure impact times of specimens with basalt fiber content of 5 kg/m3 and 10 kg/m3 are increased by 46.29% and 69.66% respectively, and the improvement effect of impact toughness is obvious. When the content of basalt fiber is 15 kg/m3, the failure impact times of the specimen are reduced due to the uneven dispersion of the fiber.

于跟社,邓宗才,王珏,等.玄武岩纤维高性能混凝土轴拉和抗冲击韧性试验研究[J].混凝土与水泥制品,2022(3):56-60. YU Gen-she, DENG Zong-cai, WANG Jue,et al.Experiment Study on Axial Tensile and Impact Toughness of Basalt Fiber Reinforced High Performance Concrete[J].China Concrete and Cement Products,2022(3):56-60.

钢筋混凝土梁抗剪性能数值模型参数取值研究

汤婷婷1，王德才2，黄俊旗3

2022年第3期

摘要

引用本文

摘要：为提高钢筋混凝土梁抗剪性能数值模型的精度，在已有12根不同强度、剪跨比和配箍率的钢筋混凝土梁抗剪性能试验基础上，基于混凝土塑性损伤模型建立了数值模型，研究了模型网格尺寸、剪胀角以及不变量应力比对数值分析结果的影响，并对12根钢筋混凝土梁进行了优化模拟分析。结果表明：网格尺寸的提高将降低数值模型分析所得刚度与承载力；剪胀角的增加将提高数值模型分析所得承载力，而不变量应力比对模型分析结果并无影响；基于优化参数所建立的数值模型可以较好的为钢筋混凝土抗剪性能评估提供参考。 Abstract： In order to improve the accuracy of numerical model for the shear performance of reinforced concrete(RC) beams, numerical analysis with concrete damage plasticity was conducted based on the existing shear test of twelve RC beams with different concrete strengths, shear span-to depth ratios and stirrup ratios. The influence of mesh size, dilation angle and invariant stress ratio on the obtained analysis result was evaluated, and the optimized parameter values were obtained. Based on the optimal values, numerical analysis was conducted on the twelve RC beams to reproduce the test result. The results indicate that the increase in mesh size can reduce the obtained stiffness and load carrying capacity of the specimen; the increase in dilation angle can enhance the obtained load carrying capacity, while the shape factor has no effect on the analysis result; the numerical model based on the optimal values can be used for assessing the shear performance of the RC beams.

汤婷婷,王德才,黄俊旗.钢筋混凝土梁抗剪性能数值模型参数取值研究[J].混凝土与水泥制品,2022(3):50-55. TANG T T,WANG D C,HUANG J Q.Value Study of Numerical Model on Shear Performance of Reinforced Concrete Beams[J].China Concrete and Cement Products,2022(3):50-55.

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