第七期_2015_《混凝土与水泥制品》杂志社

头部文案

发布时间：2020-01-06 00:00:00

全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊（光盘版）全文收录期刊

华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊



全部文章

第七期

混凝土智能蒸汽养护系统研究

王益1，李佩1，彭鑫2，陈康军2

２０15年第7期

摘要

引用本文

摘要：冬季低温环境的混凝土养护措施是否得当对早期非受力裂缝控制起到决定因素，现有的冬季混凝土养护方式存在不规范、混凝土温湿度掌握不准确、养护效率低以及污染严重等问题。通过现场混凝土施工养护试验，证实了混凝土智能蒸汽养护系统的可靠性。 Abstract: The curing measures of concrete is the key factor for controlling the early non-bearing cracks under winter low temperature environment. There are many problems such as non-standard curing method for concrete in winter, inaccuracy for temperature and humidity of concrete, low curing efficiency and serious pollution. Through the curing experiment of concrete construction on site, the reliabilty of concrete intelligent steam is proved.

再生骨料混凝土基本性能试验研究

李阳

２０15年第7期

摘要

引用本文

摘要：对普通混凝土、石屑特细砂混凝土和再生骨料混凝土分别进行了基本性能试验研究，包括塑性混凝土性能、硬化混凝土力学性能和耐久性。试验结果表明，石屑特细砂混凝土和再生骨料混凝土具有较好的力学性能和耐久性，但碎屑特细砂混凝土的收缩值相对较大。 Abstract：The basic properties of the ordinary concrete, the stone chip and extra fine sand concrete, the recycled aggregate concrete are studied, including the plastic properties of concrete, the mechanical properties and durability of hardened concrete. The results show that the stone chip and extra fine sand concrete, the recycled aggregate concrete have high strength and good durability, and dry shrinkage of the stone chip and extra fine sand concrete is bigger.

脱硫石油焦灰-硫铝酸盐水泥发泡体系的性能试验研究

李秋义，张修勤，韩帅，孔哲，莫建

２０15年第7期

摘要

引用本文

摘要：以硫铝酸盐水泥和脱硫石油焦灰为复合胶凝材料，基于双氧水发泡工艺制备发泡保温材料。研究了水胶比和发泡剂用量对脱硫石油焦灰—硫铝酸盐水泥发泡体系抗压强度和干表观密度的影响。试验结果表明，水胶比相同时，发泡水泥的干表观密度和抗压强度均随发泡剂用量增加而降低，而抗压强度在发泡剂增加到一定程度时趋于稳定；发泡剂用量相同时，干表观密度随水胶比增加而先增加后降低，抗压强度随水胶比增加总体呈上升趋势。其中当水胶比较低时，试块强度增长较快；当水胶比较高时，试块强度趋于稳定。 Abstract: Using sulphoaluminate cement and desulfurization of petroleum coke ash as composite cementitious materials, foaming thermal insulation material is prepared by hydrogen peroxide foam system. The influence of water-binder ratio and amout of foaming agent on compressive strength and dry bulk density of petroleum coke ash-sulphoaluminate cement foaming system is studied. The experiment results show that, at the same water binder ratio, while the amount of foaming agent increases, dry bulk density of foam cement and compressive strength decreases. The compressive strength of foam cement tends to be stable in some certain degree with the increasing of foaming agent; as the same amount of foaming agent, dry bulk density increases at first then decreases. With the increasing the water-binder ratio, the compressive strength increases in general. When the water binder ratio is relatively low, strength of block increases rapidly; while the water binder ratio is high, the strength of block tends to be stable.

厦门国际机场T4航站楼综合施工技术分析

杨荣华1,2，由英来1，陈洪军3

２０15年第7期

摘要

引用本文

摘要：以厦门国际机场T4航站楼工程为依托，针对工程难点，综合采用了玻璃幕墙、钢柱节点施工技术、钢结构安装、仿真技术、金属屋面施工技术等,并进行了优化和创新。应用结果表明：该工程所采用的施工方法正确合理，满足设计要求。 Abstract：Relying on Terminal T4 of Xiamen international airport, aiming at the difficulties of projects, construction technologies of using glass curtain wall, steel column joints, installation of steel structure simulation and metal roofing construction are used comprehensively, optimized and innovated. The results show that the construction method is correct and reasonable, and indexes can meet the design requirements.

便携式变态混凝土高压喷浆系统应用研究

田正宏1，蔡博文1，刘英2，唐杰伟2

２０15年第7期

摘要

引用本文

摘要：针对常规变态混凝土人工加浆作业效率低、质量难以保证等问题，研究开发了一种便携式变态混凝土高压喷浆系统，利用手提式喷浆管喷射压力在碾压混凝土内的振冲作用提高浆液注入的分布均匀性。该系统包括液压动力子系统、水泥浆液泵送子系统以及手提式喷浆子系统三部分；三部分协同工作保证了水泥浆加浆高效、定量、可控，有利于形成均质变态混凝土。现场应用效果表明，该系统明显改善了变态混凝土施工工效和成型质量，有效节省了加浆量，可提升施工工艺水平。 Abstract: To avoid the low efficiency in manual operation and quality of non-uniform in the metamorphic concrete constructing, a portable intelligent high-pressure grouting system is invented, which uses the impact function of the injection pressure in RCC（Roller Compacted Concrete）to improve the distribution uniformity of slurry. The system includes hydraulic power subsystem, cement slurry pumping subsystem and portable spray subsystem. The cooperative work of the three subsystem can ensure the cement slurry to inject into RCC to form a homogeneous metamorphic concrete with high efficiency. Field application shows that the good effect of the portable system is utilized on metamorphic concrete site and enhances the prominent efficiency and super quality of the constructing. In addition, the system can save the grouting amount and improve the construction technology level.

垃圾焚烧飞灰砂浆试验研究

黄飞，勾密峰，郝晨风，郭俊

２０15年第7期

摘要

引用本文

摘要：随着城市生活垃圾焚烧处理方式的不断推广，焚烧飞灰的产生量也不断增加。由于垃圾焚烧飞灰中富含有害重金属，属于危险废物，必须进行无害化处理。应用常规的工艺方法，用飞灰取代部分水泥制备砌筑砂浆；研究了飞灰对砂浆拌合物稠度、凝结时间等基本性能以及砂浆的力学性能和重金属浸出规律的影响，并进行了微观分析。试验结果表明，虽然飞灰会损失砂浆部分强度，但是砂浆能大幅度地减少重金属的浸出量；水泥对飞灰中重金属的固化效果良好，同时以飞灰作为辅助材料制备砂浆可以作为飞灰资源化利用的有效途径。 Abstract: With the further promotion of municipal solid waste incineration (MSWI) method, the output of MSWI fly ash is increasing. Because fly ash contains harmful heavy metal waste which belongs to the hazardous waste, it must be harmless treatment. The partial cement is replaced by MSWI fly ash for the preparation of masonry mortar by using the conventional process. The influence of fly ash on the performance of mortar mixture consistency, setting time, the mechanical properties and heavy metal leaching rule of cement mortar, and the micro analysis are studied. The results show that although MSWI fly ash can lose the partial strength of mortar, but the mortar can significantly reduce the leaching amount of heavy metals. Heavy metals in fly ash are excellently solidified by cement, and preparation of mortar with MSWI fly ash as a supplementary material can be used as an effective way of resource utilization of MSWI fly ash.

α半水石膏水热法制备工艺参数对颗粒粒度特性影响探讨

唐明亮1,2，郑海2，沈裕盛1，沈晓冬1，刘宝2

２０15年第7期

摘要

引用本文

摘要：粒度分布是高性能α半水石膏重要的颗粒特性，影响着半水石膏的标准稠度需水量和硬化浆体微结构。文章探讨了α半水石膏水热法制备过程中工艺参数对石膏粒度分布和转化时间的影响。结果表明：搅拌速率是影响α半水石膏粒度分布的最主要因素，随着搅拌速率提高，二次成核速率呈指数增加。转化温度升高有利于半水石膏细度的降低和转化时间的缩短，但随着转化温度升高半水石膏细度变化幅度降低。浆体固液比与半水石膏细度呈反比，不利于制备细小的半水石膏颗粒，但它对于提升产品的产率，降低单位质量产品能耗具有重要意义。 Abstract: The particle size distribution is an important particle characteristic for α-hemihydrate gypsum with high performances, and affects the water requirement of cement standard consistency of hemihydrate gypsum and the micro-structure of hardened gypsum paste. The influence of technical parameters on particle size distribution and conversion time in preparing process for α-hemihydrate gypsum is discussed. The results show that the stirring speed is the most important factor for affecting the particle size distribution of α-hemihydrate gypsum, the second nucleation rate shows exponential growth with the increasing of stirring speed. The increasing conversion temperature is beneficial for the decreasing of fineness of hemihydrate gypsum and the shortening of conversion time. However, the changing range of fineness of hemihydrate gypsum is decreased with the raising conversion temperature. The solid-liquid ratio is inversely to fineness of hemihydrate gypsum, which is not benefit for preparing fine hemihydrate gypsum particles, however, the solid-liquid ratio can improve of productivity, and the energy consumption for per unit products is decreased.

一种高性能发泡剂的复配研究

甘戈金，叶海燕，陈景

２０15年第7期

摘要

引用本文

摘要：以月桂酰基谷氨酸二钠和茶皂素按适当比例复配作为基础发泡剂，添加十二烷基硫酸钠、十二烷基苯磺酸钠、黄原胶、明胶和聚丙烯酰胺等不同的改性剂进行了复配研究，选择最优改性剂通过正交试验探讨其对基础发泡剂发泡和稳泡性能的改性效果。最终确定的发泡剂复配方案为：十二烷基硫酸钠的掺量为0.3%，十二烷基苯磺酸钠的掺量为0.2%，聚丙烯酰胺的掺量为0.015%。经过重现试验，发泡剂的发泡倍数达到35～37倍，1h泌水量为32.4～33.1mL，1h沉陷距为5～7mm。该发泡剂所制备的混凝土制品性能优于JG/T266—2011《泡沫混凝土》的要求。Abstract:Thebasedfoamingagentispreparedbyusingappropriateproportionofdisodiumlauroylglutamatemixedwithteasaponin.Addingdifferentadditivessuchassodiumdodecylsulfate,sodiumdodecylbenzenesulfonate,xanthangum,gelatinandpolyacrylamidethroughorthogonalexperimentarestudied,themodifiedeffectsofthebestadditivesonfoamabilityandfoamstabilityofthebasedfoamingagentarediscussed.Acertaincomplexprogram,thedosageofsodiumdodecylsulfateis0.3%,thedosageofsodiumdodecylbenzenesulfonateis0.2%,thedosageofpolyacrylamideis0.015%.Afterrepeatexperiments,thefoamexpansionreached35～37times,quantityofweepinginonehouris32.4～33.1mL,subsidencedistanceinonehouris5～7mm,andthepropertiespreparedbyconcreteproductsaresuperiortoJG/T266—2011"foamconcrete"requirements.

新型夹心保温墙体设计及其连接件剪切性能研究

吴方伯1，宋瑞1，邓利斌1,3，李钧1,3，周绪红1,2

２０15年第7期

摘要

引用本文

摘要：针对目前建筑工程中常见各类保温墙体做法的一些局限性，推荐了一种由混凝土结构层、保温层、砂浆层以及连接件构成的新型夹心保温墙体。该墙体施工流程类似普通现浇混凝土墙，工艺简单；墙体连接件处设置橡胶材质的堵头来隔断连接处的冷桥，保温节能效果显著。为验证连接件的抗剪性能，开展了墙体连接件剪切性能试验，对连接件的抗剪承载力、破坏形态、荷载-位移曲线进行了研究；根据试验结果对该墙体在工程中推广应用给出了建议。 Abstract: Aiming the limitation for common thermal wall in construction engineering, a new type of sandwich insulation wall made of concrete layers, insulation layer, mortar layer and connector is recommended. The construction process of sandwich insulation wall is similar to the ordinary reinforcement concrete walls,and the process is simple; the plugs for wall connector made of rubber are used to cut the thermal bridge of connector to achieve good energy-saving effects. To testified the shear behavior of connector, shear capacity experiment of connector on shear capacity, failure pattern and load-placement curve is studied. According to experiment results, the advice for sandwich insulation wall in engineering is presented.

塑钢纤维橡胶混凝土的配制及力学性能研究

黄智德1，段瑞斌2，向振宇3，董素芬1

２０15年第7期

摘要

引用本文

摘要：橡胶及纤维的掺入是解决混凝土脆性问题的技术途径，而塑钢纤维作为新型增强材料，可在混凝土中发挥微筋材的作用。三因素三水平正交试验极差分析表明，采用5～10目的橡胶颗粒等体积代砂10%并掺入6kg/m3的塑钢纤维配制的混凝土综合性能最优，既能克服橡胶混凝土抗压强度不足的缺点，又能大幅提高混凝土的韧性。Abstract:Theproblemsforbrittlenessofconcreteissolvedbyaddingrubberandfiber,whichistheonetechnologyway.Asanewtypeofreinforcedmaterial,ppfibercanplayaroleofmicroreinforcementmaterialinconcrete.Therangeanalysisforthreefactorsthreelevelsorthogonaltestindicatethatcomprehensivepropertiesofconcreteisbestwhichispreparedbyusing5～10meshrubberparticlesbyanequalvolumeof10%sandandadding6kg/m3ppfiber.Theplasticfiberreinforcedrubberconcretecannotonlyovercomelesscompressivestrengthofrubberconcrete,butalsogreatlyimprovethetoughnessofconcrete.

2

3

总访问量 468,401 网站统计

官方微信公众号关闭

关于我们 | 联系我们 | 订购杂志 | 回到顶部

苏ICP备10086386号

网站建设：中企动力苏州