摘   要：基于响应面法研究了砂率（37%、39%、41%）、粗骨料级配（m5~10 mm花岗岩洞渣∶m10~15 mm花岗岩洞渣=3∶7、4∶6、5∶5）、水胶比（0.33、0.37、0.41）对花岗岩洞渣混凝土坍落度和28 d抗压强度的影响，并优化了花岗岩洞渣混凝土的配合比。结果表明：花岗岩洞渣混凝土的最优配合比方案为砂率41%、m5~10 mm花岗岩洞渣∶m10~15 mm花岗岩洞渣=5∶5、水胶比0.38，对应的花岗岩洞渣混凝土坍落度、28 d抗压强度的预测值与实测值误差分别为2.5%、3.5%；花岗岩洞渣混凝土坍落度回归模型、28 d抗压强度回归模型的R2分别为0.985 3和 0.969 9，2个模型的预测精度均较高。Abstract: The effects of sand ratio (37%, 39%, 41%), coarse aggregate gradation (m5~10 mm granite cave slag ∶ m10~15 mm granite cave slag = 3∶7, 4∶6, 5∶5), water-binder ratio (0.33, 0.37, 0.41) on the slump and 28 d compressive strength of concrete with granite cave slag were studied, and the mix proportion of concrete with granite cave slag was optimized. The results show that the optimal mix proportion design of concrete with granite cave slag is as follows: sand ratio of 41%, m5~10 mm granite cave slag ∶ m10~15 mm granite cave slag = 5∶5, water-binder ratio of 0.38, and the corresponding errors between predicted and measured values of slump and 28 d compressive strength of concrete with granite cave slag are 2.5% and 3.5%, respectively. The R2 values for the slump regression model and the 28 d compressive strength regression model of concrete with granite cave slag are 0.985 3 and 0.969 9, respectively, indicating that the two models both exhibit high prediction accuracy.

郭东,刘彩玲,牛智勇,等.栾从起基于响应面法的花岗岩洞渣混凝土配合比优化[J].混凝土与水泥制品,2025(11):115-121. GUO D,LIU C L,NIU Z Y,et al.Mix proportion optimization of concrete with granite cave slag based on response surface method[J].China Concrete and Cement Products,2025(11):115-121.

郭东,刘彩玲,牛智勇,等.栾从起基于响应面法的花岗岩洞渣混凝土配合比优化[J].混凝土与水泥制品,2025(11):115-121. GUO D,LIU C L,NIU Z Y,et al.Mix proportion optimization of concrete with granite cave slag based on response surface method[J].China Concrete and Cement Products,2025(11):115-121.

摘   要：研究了粉煤灰掺量（20%、25%、30%、35%、40%）、水胶比（0.35、0.38、0.40、0.43、0.45）、砂率（25%、30%、35%、40%）对粉煤灰混凝土力学性能的影响，基于正交试验方法，对粉煤灰混凝土的配合比进行了优化。结果表明：当砂率和粉煤灰掺量一定时，试件的单轴抗压强度随着水胶比的增加而降低；当水胶比和粉煤灰掺量一定时，试件的单轴抗压强度随着砂率的增加呈先增加后降低的趋势；当砂率分别为25%和30%时，随着粉煤灰掺量的增加，试件的单轴抗压强度呈先增加后降低的趋势；当砂率分别为35%和40%时，试件的单轴抗压强度随着粉煤灰掺量的增加而降低；配合比优化后，当砂率为35%、粉煤灰掺量为25%、水胶比为0.38时，试件的单轴抗压强度最佳。Abstract: The influence of fly ash content(20%、25%、30%、35%、40%), water-binder ratio (0.35、0.38、0.40、0.43、0.45), and sand ratio(25%、30%、35%、40%) on the mechanical properties of fly ash concrete was studied. Based on the orthogonal experimental method, the mix proportion of fly ash concrete was optimized. The results show that when the sand ratio and fly ash content are constant, the uniaxial compressive strength of the specimen decreases with the increase of water-binder ratio. When the water-binder ratio and fly ash content are constant, the uniaxial compressive strength of the specimen shows a trend of first increasing and then decreasing with the increase of sand ratio. When the sand ratios are 25% and 30%, the uniaxial compressive strength of the specimen shows a trend of first increasing and then decreasing with the increase of fly ash content. When the sand content is 35% and 40%, the uniaxial compressive strength of the specimen decreases with the increase of fly ash content. After optimizing the mix proportion, the uniaxial compressive strength of the specimen is optimal when the sand ratio is 35%, the fly ash content is 25%, and the water-binder ratio is 0.38.

徐世达,张海行,董聪慧,等.粉煤灰混凝土强度演化规律及配合比优化研究[J].混凝土与水泥制品,2025(11):106-110. XU S D,ZHANG H X,DONG C H,et al.Study on strength evolution law and mix proportion optimization of fly ash concrete[J].China Concrete and Cement Products,2025(11):106-110.

摘   要：研究了煅烧温度（100~1 450 ℃）对废弃低碳胶凝材料物相组成、微观形貌的影响，以及煅烧温度（600~1 450 ℃）、水灰比（0.20、0.25、0.30）、养护龄期（30、60、90 d）对废弃低碳胶凝材料净浆试件抗压强度的影响，并进行了微观分析。结果表明：随着煅烧温度的升高，废弃低碳胶凝材料的物相变化主要表现为Ca(OH)2、CaCO3、AFt等分解及硅酸盐矿物形成；在相同煅烧温度下，水灰比越大，试件的30 d抗压强度越低；不同水灰比下，煅烧温度对 30 d抗压强度影响各异；当煅烧温度一定时，试件的抗压强度随着养护龄期的增加而增大；当养护龄期一定时，试件的抗压强度随着煅烧温度的升高基本先增后降；经1 200~1 450 ℃煅烧处理废弃低碳胶凝材料的净浆试件基体密实度较高。Abstract: The effects of calcination temperature (100~1 450 °C) on the phase composition and microstructure of waste low-carbon cementitious materials, as well as the effects of calcination temperature (600~1 450 °C), water-cement ratio (0.20, 0.25, 0.30), and curing age (30, 60, 90 d) on the compressive strength of waste low-carbon cementitious materials pastes, and microanalysis were conducted. The results show that with the increase of calcination temperature, the phase changes of waste low-carbon cementitious materials primarily manifest as the decomposition of Ca(OH)2, CaCO3, AFt, etc., and the formation of silicate minerals. At the same calcination temperature, the higher the water-cement ratio, the lower the 30 d compressive strength of the specimens. At different water-cement ratios, the calcination temperature has varying effects on 30 d compressive strength. When the calcination temperature is constant, the compressive strength of the pastes increases with the increase of curing age. When the curing age is constant, the compressive strength of the pastes basically first increases and then decreases with the increase of calcination temperature. The pastes with waste low-carbon cementitious materials by calcination at 1 200~1 450 °C have a higher matrix density.

权家乐,葛培,宋杨,等.高温煅烧对废弃低碳胶凝材料物相、微观形貌和力学性能的影响研究[J].混凝土与水泥制品,2025(11):99-105. QUAN J L,GE P,SONG Y,et al.Study on the effect of high-temperature calcination on the phase composition, microstructure, and mechanical properties of waste low- carbon cementitious materials[J].China Concrete and Cement Products,2025(11):99-105.

摘   要：研究了改性磷石膏（WHPG）等质量取代30%低碱度硫铝酸盐水泥（LSAC）对混凝土抗压强度、抗冻性能、抗氯离子渗透性能和干燥收缩性能的影响，同时探究了WHPG-LSAC复合胶凝材料用于制备植生混凝土的可行性，并与P·O 42.5R级水泥混凝土进行了对比。结果表明：用30%的WHPG等质量取代LSAC提高了混凝土的抗压强度、抗氯离子渗透性能和干燥收缩性能，降低了抗冻性能；WHPG-LSAC复合胶凝材料混凝土的各项性能优于P·O 42.5R级水泥混凝土；相较于P·O 42.5R级水泥植生混凝土，LSAC-WHPG复合胶凝材料植生混凝土的综合性能相对更好，且基于其种植的植物呈现出更粗壮的生长态势，发芽率也相对略高。Abstract: The effect of the replacement of low alkalinity sulphoaluminate cement(LSAC) with 30% modified phosphogypsum(WHPG) on the compressive strength, frost resistance, chloride ion penetration resistance, and drying shrinkage of concrete was investigated. Additionally, the feasibility of WHPG-LSAC composite cementitious materials for preparing planting concrete was explored, and compared with concrete with P·O 42.5R grade cement. The results indicate that the replacement of LSAC with 30% WHPG by equal mass improves the compressive strength, chloride ion penetration resistance, and drying shrinkage of concrete, while reducing frost resistance. The performance of concrete made with the WHPG-LSAC composite cementitious material is superior to that of concrete with P·O 42.5R grade cement in all aspects. Compared to planting concrete with P·O 42.5R grade cement, the planting concrete with LSAC-WHPG composite cementitious material exhibits superior comprehensive performance, and the plants cultivated in it show more robust growth patterns and slightly higher germination rates.

阳黎,朱立胜,张水建,等.磷石膏-低碱度硫铝酸盐水泥胶凝材料在植生混凝土中的应用研究[J].混凝土与水泥制品,2025(11):93-98. YANG L,ZHU L S,ZHANG S J,et al.Application research of phosphogypsum-low alkalinity sulfoaluminate cementitious material system in planting concrete[J].China Concrete and Cement Products,2025(11):93-98.