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    蘇州混凝土水泥制品研究院有限公司

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    第七期

    混凝土智能蒸汽養護系統研究
    混凝土智能蒸汽養護系統研究
    • 王 益1,李 佩1,彭 鑫2,陳康軍2
    2015年第7期
    摘要
    引用本文
    摘 要:冬季低溫環境的混凝土養護措施是否得當對早期非受力裂縫控制起到決定因素,現有的冬季混凝土養護方式存在不規范、混凝土溫濕度掌握不準確、養護效率低以及污染嚴重等問題。通過現場混凝土施工養護試驗,證實了混凝土智能蒸汽養護系統的可靠性。 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試驗研究
    再生骨料混凝土基本性能試驗研究
    • 李 陽
    2015年第7期
    摘要
    引用本文
    摘 要:對普通混凝土、石屑特細砂混凝土和再生骨料混凝土分別進行了基本性能試驗研究,包括塑性混凝土性能、硬化混凝土力學性能和耐久性。試驗結果表明,石屑特細砂混凝土和再生骨料混凝土具有較好的力學性能和耐久性,但碎屑特細砂混凝土的收縮值相對較大。 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.
    脫硫石油焦灰-硫鋁酸鹽水泥發泡體系的性能試驗研究
    脫硫石油焦灰-硫鋁酸鹽水泥發泡體系的性能試驗研究
    • 李秋義,張修勤,韓 帥,孔 哲,莫 建
    2015年第7期
    摘要
    引用本文
    摘 要:以硫鋁酸鹽水泥和脫硫石油焦灰為復合膠凝材料,基于雙氧水發泡工藝制備發泡保溫材料。研究了水膠比和發泡劑用量對脫硫石油焦灰—硫鋁酸鹽水泥發泡體系抗壓強度和干表觀密度的影響。試驗結果表明,水膠比相同時,發泡水泥的干表觀密度和抗壓強度均隨發泡劑用量增加而降低,而抗壓強度在發泡劑增加到一定程度時趨于穩定;發泡劑用量相同時,干表觀密度隨水膠比增加而先增加后降低,抗壓強度隨水膠比增加總體呈上升趨勢。其中當水膠比較低時,試塊強度增長較快;當水膠比較高時,試塊強度趨于穩定。 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.
    廈門國際機場T4航站樓綜合施工技術分析
    廈門國際機場T4航站樓綜合施工技術分析
    • 楊榮華1,2,由英來1,陳洪軍3
    2015年第7期
    摘要
    引用本文
    摘 要:以廈門國際機場T4航站樓工程為依托,針對工程難點,綜合采用了玻璃幕墻、鋼柱節點施工技術、鋼結構安裝、仿真技術、金屬屋面施工技術等,并進行了優化和創新。應用結果表明:該工程所采用的施工方法正確合理,滿足設計要求。 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.
    便攜式變態混凝土高壓噴漿系統應用研究
    便攜式變態混凝土高壓噴漿系統應用研究
    • 田正宏1,蔡博文1,劉 英2,唐杰偉2
    2015年第7期
    摘要
    引用本文
    摘 要:針對常規變態混凝土人工加漿作業效率低、質量難以保證等問題,研究開發了一種便攜式變態混凝土高壓噴漿系統,利用手提式噴漿管噴射壓力在碾壓混凝土內的振沖作用提高漿液注入的分布均勻性。該系統包括液壓動力子系統、水泥漿液泵送子系統以及手提式噴漿子系統三部分;三部分協同工作保證了水泥漿加漿高效、定量、可控,有利于形成均質變態混凝土?,F場應用效果表明,該系統明顯改善了變態混凝土施工工效和成型質量,有效節省了加漿量,可提升施工工藝水平。 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.
    垃圾焚燒飛灰砂漿試驗研究
    垃圾焚燒飛灰砂漿試驗研究
    • 黃 飛,勾密峰,郝晨風,郭 俊
    2015年第7期
    摘要
    引用本文
    摘 要:隨著城市生活垃圾焚燒處理方式的不斷推廣,焚燒飛灰的產生量也不斷增加。由于垃圾焚燒飛灰中富含有害重金屬,屬于危險廢物,必須進行無害化處理。應用常規的工藝方法,用飛灰取代部分水泥制備砌筑砂漿;研究了飛灰對砂漿拌合物稠度、凝結時間等基本性能以及砂漿的力學性能和重金屬浸出規律的影響,并進行了微觀分析。試驗結果表明,雖然飛灰會損失砂漿部分強度,但是砂漿能大幅度地減少重金屬的浸出量;水泥對飛灰中重金屬的固化效果良好,同時以飛灰作為輔助材料制備砂漿可以作為飛灰資源化利用的有效途徑。 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半水石膏水熱法制備工藝參數對顆粒粒度特性影響探討
    α半水石膏水熱法制備工藝參數對顆粒粒度特性影響探討
    • 唐明亮1,2,鄭 海2,沈裕盛1,沈曉冬1,劉 寶2
    2015年第7期
    摘要
    引用本文
    摘 要:粒度分布是高性能α半水石膏重要的顆粒特性,影響著半水石膏的標準稠度需水量和硬化漿體微結構。文章探討了α半水石膏水熱法制備過程中工藝參數對石膏粒度分布和轉化時間的影響。結果表明:攪拌速率是影響α半水石膏粒度分布的最主要因素,隨著攪拌速率提高,二次成核速率呈指數增加。轉化溫度升高有利于半水石膏細度的降低和轉化時間的縮短,但隨著轉化溫度升高半水石膏細度變化幅度降低。漿體固液比與半水石膏細度呈反比,不利于制備細小的半水石膏顆粒,但它對于提升產品的產率,降低單位質量產品能耗具有重要意義。 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.
    一種高性能發泡劑的復配研究
    一種高性能發泡劑的復配研究
    • 甘戈金,葉海燕,陳 景
    2015年第7期
    摘要
    引用本文
    摘??要:以月桂?;劝彼岫c和茶皂素按適當比例復配作為基礎發泡劑,添加十二烷基硫酸鈉、十二烷基苯磺酸鈉、黃原膠、明膠和聚丙烯酰胺等不同的改性劑進行了復配研究,選擇最優改性劑通過正交試驗探討其對基礎發泡劑發泡和穩泡性能的改性效果。最終確定的發泡劑復配方案為:十二烷基硫酸鈉的摻量為0.3%,十二烷基苯磺酸鈉的摻量為0.2%,聚丙烯酰胺的摻量為0.015%。經過重現試驗,發泡劑的發泡倍數達到35~37倍,1h泌水量為32.4~33.1mL,1h沉陷距為5~7mm。該發泡劑所制備的混凝土制品性能優于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.
    新型夾心保溫墻體設計及其連接件剪切性能研究
    新型夾心保溫墻體設計及其連接件剪切性能研究
    • 吳方伯1,宋 瑞1,鄧利斌1,3,李 鈞1,3,周緒紅1,2
    2015年第7期
    摘要
    引用本文
    摘 要:針對目前建筑工程中常見各類保溫墻體做法的一些局限性,推薦了一種由混凝土結構層、保溫層、砂漿層以及連接件構成的新型夾心保溫墻體。該墻體施工流程類似普通現澆混凝土墻,工藝簡單;墻體連接件處設置橡膠材質的堵頭來隔斷連接處的冷橋,保溫節能效果顯著。為驗證連接件的抗剪性能,開展了墻體連接件剪切性能試驗,對連接件的抗剪承載力、破壞形態、荷載-位移曲線進行了研究;根據試驗結果對該墻體在工程中推廣應用給出了建議。 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.
    塑鋼纖維橡膠混凝土的配制及力學性能研究
    塑鋼纖維橡膠混凝土的配制及力學性能研究
    • 黃智德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:橡膠及纖維的摻入是解決混凝土脆性問題的技術途徑,而塑鋼纖維作為新型增強材料,可在混凝土中發揮微筋材的作用。三因素三水平正交試驗極差分析表明,采用5~10目的橡膠顆粒等體積代砂10%并摻入6kg/m3的塑鋼纖維配制的混凝土綜合性能最優,既能克服橡膠混凝土抗壓強度不足的缺點,又能大幅提高混凝土的韌性。Abstract:Theproblemsforbrittlenessofconcreteissolvedbyaddingrubberandfiber,whichistheonetechnologyway.Asanewtypeofreinforcedmaterial,ppfibercanplayaroleofmicroreinforcementmaterialinconcrete.Therangeanalysisforthreefactorsthreelevelsorthogonaltestindicatethatcomprehensivepropertiesofconcreteisbestwhichispreparedbyusing5~10meshrubberparticlesbyanequalvolumeof10%sandandadding6kg/m3ppfiber.Theplasticfiberreinforcedrubberconcretecannotonlyovercomelesscompressivestrengthofrubberconcrete,butalsogreatlyimprovethetoughnessofconcrete.
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