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    蘇州混凝土水泥制品研究院有限公司

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    發布時間:2020-01-06 00:00:00
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    第八期

    全組分再生細骨料在干混砂漿中的應用研究
    全組分再生細骨料在干混砂漿中的應用研究
    • 張道令,呂常勝,張春濤,徐 超,余祖勝,諶 柳
    2017年第8期
    摘要
    引用本文
    摘 要:分析了建筑垃圾再生細骨料在干混砂漿中應用的經濟性,并對其在干混砂漿中應用時存在的問題進行了研究。結果表明,用建筑垃圾中紅磚破碎的磚砂由于吸水率高,會造成砂漿2h稠度損失率嚴重超標,但通過技術手段可以使其有效降低,滿足相關標準要求。另外,磚砂的加入會使砂漿早期強度逐漸降低,但隨著磚砂摻量的增加,砂漿后期強度的增長率逐漸增加,使得砂漿28d抗壓強度隨磚砂摻量的增加呈先增加后降低的趨勢。 Abstract: The economy of recycled fine aggregate of construction waste application in dry-mixed mortar is analyzed,and the problems that application in dry-mixed mortar are studied. The results show that the sands crushed by red brick of construction waste are very high in water absorption, which can make the ratio of consistency loss in 2h exceeds badly,but it can be lower which can meet the requirements of relevant standards by technical means. Besides, the early strength of mortar gradually decreased when it is added into more red brick, the growth rate of mortar strength in long-term gradually increase when it is added into more red brick, which make the compressive strength of 28d gradually increase in the first and then decreased.
    張道令,呂常勝,張春濤,等.全組分再生細骨料在干混砂漿中的應用研究[J].混凝土與水泥制品,2017(8):91-94. ZHANG D L, LYU C S, ZHANG C T,et al.Application Study on Recycled Fine Aggregate with All Components in Dry-mixed Mortar[J].China Concrete and Cement Products,2017(8):91-94.
    廢棄線路板非金屬殘渣作填充料對鎂質膠凝材料性能的影響
    廢棄線路板非金屬殘渣作填充料對鎂質膠凝材料性能的影響
    • 王祖潤,杜 中,張永貴,余學飛
    2017年第8期
    摘要
    引用本文
    摘 要:研究了廢棄線路板非金屬殘渣對鎂質膠凝材料的水化過程、抗壓強度、鎂質膠凝材料晶體形貌的影響,結合掃描電鏡對其反應機理進行了分析。結果表明,非金屬殘渣能抑制鎂質膠凝材料的早期水化,使水化放熱減緩,早期水化率降低,凝結時間延長;非金屬殘渣對鎂質膠凝材料晶體形貌影響較大,使鎂質膠凝材料晶體尺寸明顯增大;非金屬殘渣通過多種途徑的作用對鎂質膠凝材料產生了緩凝作用。當非金屬殘渣摻量超過15%時,抗壓強度下降較大。 Abstract: The effect of non-metallic residues of waste printed circuit boards on the hydration process, compressive strength, and crystal morphology of magnesium oxychloride cement are investigated. By using the SEM, its retarding mechanism is also studied. The results indicate that the addition of non-metallic residues can lead to the delay in the hydration heat evolution. It can also decrease the hydration ratio at in the early stage and delay the prolong induction period of magnesium oxychloride cement. Non-metallic residues has a major effect on the crystal morphology of magnesium oxychloride cement, it can make the crystal sizes larger. Retardation to magnesium oxychloride cement is caused by a variety of ways with the non-metallic residues. When the content of non-metallic residue is more than 15%, the compressive strength decreases quickly.
    王祖潤,杜中,張永貴,等.廢棄線路板非金屬殘渣作填充料對鎂質膠凝材料性能的影響[J].混凝土與水泥制品,2017(8):87-90. WANG Z R, DU Z, ZHANG Y G,et al.Influence of Non-metallic Residues of Waste Printed Circuit Board as Filling Material on Performance of Magnesium Oxychloride Cement[J].China Concrete and Cement Products,2017(8):87-90.
    紅外成像技術監測鋼管柱中混凝土密實度的研究
    紅外成像技術監測鋼管柱中混凝土密實度的研究
    • 岳著文,張德財,危 鼎,陰光華
    2017年第8期
    摘要
    引用本文
    摘 要:深坑酒店工程大量使用傾斜鋼管混凝土柱,鋼管柱內設隔板造成混凝土澆筑質量難以保障,對鋼管柱內混凝土密實度進行準確監控成為保證鋼管柱混凝土施工質量的關鍵技術。為解決鋼管柱中混凝土密實度難以監測的問題,研究了采用紅外成像技術,通過間接測定混凝土澆筑過程引起的鋼管柱表面溫度變化來判定鋼管柱密實度,并通過現場實測驗證了該技術的可行性。 Abstract: A lot of slantwise steel tube columns were used in Shanghai deep pit hotel. The concrete construction quality is difficult to guarantee due to the diaphragm using in the steel tube columns. The accuracy of concrete compactness monitoring inside columns is a key technology to ensure the quality of steel tube columns. By measuring the temperature changes on the columns surfaces due to concrete construction, infrared thermography technology was used in deep pit hotel to monitor concrete compactness. This method was tested by field measurement.
    岳著文,張德財,危鼎,等.紅外成像技術監測鋼管柱中混凝土密實度的研究[J].混凝土與水泥制品,2017(8):84-86. YUE Z W, ZHANG D C, WEI D,et al.Research on Compactness of Concrete of Steel Tube Column Monitored by Infrared Thermography Technology[J].China Concrete and Cement Products,2017(8):84-86.
    礦物摻合料對負溫套筒灌漿料性能的影響
    礦物摻合料對負溫套筒灌漿料性能的影響
    • 馬正先1,周傳貴1,杭鑫坤1,逄魯峰1,劉巧玲1,李 兵2,常青山3
    2017年第8期
    摘要
    引用本文
    摘??要:負溫套筒灌漿料可以滿足冬季預制構件灌漿連接的施工要求,礦物摻合料對負溫套筒灌漿料性能具有積極影響。為了改善負溫套筒灌漿料的性能,在常溫套筒灌漿料研究的基礎上,確定了負溫套筒灌漿料的基本配比,并研究了礦粉、粉煤灰、硅灰等礦物摻合料對負溫套筒灌漿料初始流動度、30min流動度和1d、3d、28d抗壓與抗折強度的影響。結果表明,三種礦物摻合料對負溫套筒灌漿料性能的影響程度為硅灰>礦粉>粉煤灰。Abstract:Negativetemperaturesleevegroutingmaterialcanmeettheconstructionrequirementsofwinterpre-fabricatedgroutingconnection.Mineraladmixtureshavepositiveeffectsontheperformanceofnegativetemperaturesleevegroutingmaterial.Inordertoimprovetheperformanceofthesleeveofthegroutingmaterial,thebasicproportionofmixtureofnegativetemperaturesleevegroutingmaterialisresearchedonthebasisofroomtemperaturesleevegroutingmaterial.Andthentheeffectoftheslagpowder,flyash,andsiliconashoninitialfluidityandfluidityof30minand1d,3dand28dcompressivestrengthandflexuralstrengthareresearchedsystematically.Theresultsshowthattheinfluenceofthethreekindsofmineraladmixturesonthepropertiesofnegativetemperaturesleevegroutingmaterialaresiliconash>slagpowder>flyash.
    馬正先,周傳貴,杭鑫坤,等.礦物摻合料對負溫套筒灌漿料性能的影響[J].混凝土與水泥制品,2017(8):80-83. MA Z X, ZHOU C G, HANG X K,et al.Effects of Mineral Admixtures on Properties of Negative Temperature Sleeve Grounting Materials[J].China Concrete and Cement Products,2017(8):80-83.
    RFID和智能機器人在混凝土全自動抗壓強度檢測系統中的應用
    RFID和智能機器人在混凝土全自動抗壓強度檢測系統中的應用
    • 李 貞1,高 帆2
    2017年第8期
    摘要
    引用本文
    摘 要:將RFID射頻芯片植入砂漿或混凝土試塊,利用RFID技術和物聯網思想實現試塊的制作、養護、送檢及抗壓強度檢測等全過程的追蹤和動態監管;將RFID技術應用于壓力試驗機,可實現試塊的上料、讀取RFID芯片信息、試驗、下料等全過程自動連續完成。在全自動抗壓強度檢測系統中引入智能機器人對完善工程質量檢測的自動化和智能化具有積極意義。 Abstract: The RFID RF chip is inserted into the mortar or concrete test block, and the RFID technology and IOT thought are used in the dynamic tracking and supervision to achieve the whole process of making, maintenance, inspection and compressive test of the sample. Combining with RFID, the pressure testing machine could automatically achieve the whole process of feeding, reading RFID chip information, testing of the sample. The introducing of the intelligent robot has positive implications for improving the automation and intelligence of engineering quality testing.
    李貞,高帆.RFID和智能機器人在混凝土全自動抗壓強度檢測系統中的應用[J].混凝土與水泥制品,2017(8):77-79. LI Z, GAO F.Application of RFID and Intelligent Robot in Fully Automatic Compressive Strength Detection System of Concrete[J].China Concrete and Cement Products,2017(8):77-79.
    高應力剪切條件下粗砂與混凝土結構接觸面顆粒破碎試驗研究
    高應力剪切條件下粗砂與混凝土結構接觸面顆粒破碎試驗研究
    • 檀俊坤,郭佳奇,徐子龍,劉希亮
    2017年第8期
    摘要
    引用本文
    摘??要:通過在RMT-150B巖石力學系統基礎上自行改進的高應力直剪儀,對不同含水率的粗砂與不同硬度和粗糙度的混凝土結構接觸面進行粗砂與混凝土結構接觸面顆粒破碎試驗研究。結果表明,高法向應力粗砂與混凝土結構接觸面直剪試驗后顆粒級配曲線相較于試驗前的曲線所對應出的顆粒粒徑含量,隨粒徑的減小呈現出先減小后增加趨勢,在顆粒粒徑為0.25~0.074mm段,試驗前后兩級配曲線相互靠攏,對應粒徑的含量變化較??;干粗砂破碎相較于含水的粗砂總體上破碎率較大,大粒徑顆粒砂隨含水率增大破碎量增大,小粒徑顆粒砂隨含水率增大呈現破碎減小狀態,而含水率的大小對顆粒破碎影響相差不大;結構接觸面的混凝土強度為C20、C30,粗糙度為3mm時,顆粒相對破碎率最小,結構接觸面的混凝土強度為C40、C50表現與之相反;隨著混凝土強度的增加,粗糙類型-破碎率曲線隨粗糙度波動的敏感度變小,在混凝土結構接觸面強度為C40時粗糙類型-破碎率曲線隨粗糙度波動敏感度最小。Abstract:UsingtheimprovedRMT-150Brockmechanicsbasedonhighstressdirectshearapparatus,differentmoisturecontentofcoarsesandanddifferentcontactsurfacehardnessandroughnessoftheconcreteareusedintheinterfaceparticlecrushingtest.Theresultsshowthatthecourttothecontactstressofcoarsesandandconcretestructureafterthedirectsheartestgradingcurvecomparedtobeforethetestcurvecorrespondstothecontentofparticlesize,withthedecreaseofparticlesizefirstdecreaseandthenincrease,theparticlesizerangesfrom0.25mmto0.074mm,thetwogradationcurveconvergencebeforeandafterthetest,thevariationincontentofparticlesizeissmaller.Comparedwithwatercoarsesand,thedrycoarsesand'sbrokenrateishigher,thesandparticlessizeincreaseswiththeincreasingofthemoisturecontentofbreakageandsmallsand.WhentheconcreteofthestructurecontactisC20andC30,andtheroughnessis3mm,therelativeparticlebreakingrateistheminimum.WhentheconcreteofthestructurecontactisC40andC50,itistheopposite.Withtheincreaseofconcretestrength,thesensitivityof?thecurvereduces.WhentheconcreteofthestructurecontactisC40,theroughnesssensitivityistheminimum.
    檀俊坤,郭佳奇,徐子龍,等.高應力剪切條件下粗砂與混凝土結構接觸面顆粒破碎試驗研究[J].混凝土與水泥制品,2017(8):72-76. TAN J K, GUO J Q, XU Z L,et al.Experimental Study on Particle Crushing of Coarse Sand and Concrete Structure Contact Surface under High Stress and Shear Condition[J].China Concrete and Cement Products,2017(8):72-76.
    針對復合式地層的刀盤設計
    針對復合式地層的刀盤設計
    • 尹懷秀
    2017年第8期
    摘要
    引用本文
    摘 要:結合南昌地鐵一號線, 依據復合底層的地質參數,從刀盤結構、刀具布置、開口率、攪拌、轉速、扭矩、注入口等因素出發,設計了復合式刀盤進行盾構施工。 Abstract: Combined with the Nanchang metro line 1, according to the geological parameters of composite bottom, the composite cutter for shield construction is designed from the cutter structure, cutter layout, opening rate, stirring, speed, torque, injection port and other factors.
    尹懷秀.針對復合式地層的刀盤設計[J].混凝土與水泥制品,2017(8):69-71. YIN H X.Cutterhead Design of Composite Formation[J].China Concrete and Cement Products,2017(8):69-71.
    豎張法雙折線體外預應力加固RC梁撓度計算
    豎張法雙折線體外預應力加固RC梁撓度計算
    • 顏燕祥,劉進軍,李峻峰,王天穩
    2017年第8期
    摘要
    引用本文
    摘 要:采用體外預應力豎向張拉雙折線布筋方法,對2根矩形對比梁,三組不同預應力筋配筋率、不同工況的9根矩形鋼筋混凝土簡支梁進行了加固試驗研究。在考慮二次效應、體外預應力筋有效應力和加固工況的影響下,對加固梁的短期剛度進行了驗證分析計算,得到了加固梁短期剛度計算公式的適用范圍,并計算得到了試驗梁的短期撓度值。 Abstract:The external prestressing with double broken line and vertical tensioning method is used to test the deflection behavior of eleven rectangle reinforced concrete beams (two contrastive beams and nine externally reinforced beams with different prestressed reinforcement ratio and reinforced conditions). The short-term stiffness of flexural member is analyzed and verification considering the secondary effect, the prestressed reinforcement ratio and the reinforcement conditions. The application range of the formula for short-term stiffness and the deflection of reinforced beams are given.
    顏燕祥,劉進軍,李峻峰,等.豎張法雙折線體外預應力加固RC梁撓度計算[J].混凝土與水泥制品,2017(8):63-68. YAN Y X, LIU J J, LI J F,et al.Deflection Calculation of Double Broken Line External Prestressing Reinforcement RC Beam with Vertical Tensioning Method[J].China Concrete and Cement Products,2017(8):63-68.
    真空絕熱板薄抹灰系統中的黏結性能試驗研究
    真空絕熱板薄抹灰系統中的黏結性能試驗研究
    • 陳 旭1,2,董 浩2,林 瑞2,曲艷召2
    2017年第8期
    摘要
    引用本文
    摘 要:在外墻外保溫工程中,真空絕熱板的應用主要借鑒膨脹聚苯板等薄抹灰系統的技術和材料,可能存在黏結性不良的問題。本文對用于膨脹聚苯板薄抹灰系統的膠黏劑與真空絕熱板的黏結性能進行試驗研究及機理分析,明確了膠黏劑中水泥和可再分散乳膠粉摻量以及真空絕熱板熱熔熱壓工藝的影響作用。同時,提出了膠黏劑用于真空絕熱板的改性策略并進行了正交試驗分析。結果表明,添加EVA乳液等方法有助于提高膠黏劑與真空絕熱板的拉伸黏結強度。 Abstract: In external wall insulation projects, the application of vacuum insulated panel technology and material is learning from external thermal insulation system based on expanded polystyrene board, there may be a problem of poor bonding. The tensile bond strength between vacuum insulated panel and adhesives used for expanded polystyrene board is studied by experiments and analysis by mechanism. The effect of the cement and redispersible polymer powder content and hot melt-hot pressing technology is made clear. In the meantime, modification strategies have been proposed and checked by experiments with the following orthogonal tests. The results show that addition of EVA emulsion and such methods can be used to improve the tensile bond strength.
    陳旭,董浩,林瑞,等.真空絕熱板薄抹灰系統中的黏結性能試驗研究[J].混凝土與水泥制品,2017(8):60-62. CHEN X, DONG H, LIN R,et al.Experimental Research on Tensile Bonding Performance of Vacuum Insulated Panel in Thin Plaster System[J].China Concrete and Cement Products,2017(8):60-62.
    石屑混凝土梁板抗彎承載力試驗研究
    石屑混凝土梁板抗彎承載力試驗研究
    • 蔣雪琴1,譚世霖1, 楊醫博2,3
    2017年第8期
    摘要
    引用本文
    摘 要:通過石屑混凝土梁板與河砂混凝土梁板靜載對比試驗研究,探索了石屑混凝土構件受力性能及可靠性。試驗結果表明,石屑混凝土梁板在最大試驗荷載作用下,其應變、裂縫及撓度值均能滿足設計和規范要求,結構安全。 Abstract: The static tests of stone chip concrete beams and sand concrete slabsis compared, the mechanical properties and reliability of stone chip concrete member are studied. The results show that the strain, crack and deflection value of stone chip concrete beam and slab can meet the requirements of design and specification under the maximum test load.
    蔣雪琴,譚世霖,楊醫博.石屑混凝土梁板抗彎承載力試驗研究[J].混凝土與水泥制品,2017(8):56-59. JIANG X Q, TAN S L, YANG Y B.Experimental Study on Bending Capacity of Stone Chip Concrete Beams and Slab[J].China Concrete and Cement Products,2017(8):56-59.
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