<table id="qrkot"><ruby id="qrkot"></ruby></table>
  1. <acronym id="qrkot"></acronym>
  2. <tr id="qrkot"><s id="qrkot"></s></tr>
  3. <table id="qrkot"><option id="qrkot"></option></table>
  4. <big id="qrkot"><ruby id="qrkot"></ruby></big>
  5. <track id="qrkot"></track>
    蘇州混凝土水泥制品研究院有限公司

    頭部文案

    發布時間:2020-01-06 00:00:00
    全國建材科技期刊
    全國中文核心期刊
    中國科技論文統計源期刊
    萬方數據-數字化期刊群入網期刊
    中國學術期刊(光盤版)全文收錄期刊
    華東地區優秀科技期刊
    江蘇省期刊方陣“雙效期刊”
    中國期刊網全文收錄期刊
    中國科技期刊數據庫全文收錄期刊

    全部文章

    第六期

    建筑垃圾再生混合砂混凝土力學性能試驗研究
    建筑垃圾再生混合砂混凝土力學性能試驗研究
    • 劉俊華1,孫 勇1,劉鳳利2,張承志2
    2014年第6期
    摘要
    引用本文
    摘 要:為實現建筑垃圾的再生利用和特細砂的大宗利用,將廢混凝土再生粗砂、廢磚再生粗砂分別與特細砂摻配,得到建筑垃圾再生混合砂,研究其對混凝土表觀密度、和易性、抗壓強度和劈裂抗拉強度的影響。試驗結果表明,建筑垃圾再生混合砂替代天然砂配制混凝土,可達到設計和易性和強度要求,并有利于降低容重;廢磚再生混合砂混凝土的韌性優于普通混凝土,而廢混凝土再生混合砂混凝土的韌性劣于普通混凝土。 Abstract: In order to achieve the recycling of construction wastes and comprehensive utilization of super-fine sand, the construction wastes mixed sand is made by super-fine sand partly replaced by recycled concrete coarse sand or recycled brick coarse sand. The influences of construction wastes mixed sand on the apparent density, workability, compressive strength and tensile splitting strength of concrete are studied. Based on comparison tests, conclusions can be drawn that concrete using construction wastes mixed sand instead of natural sand can meet the standard of the workability and strength design while decreasing concrete unit weight. The toughness of recycled brick mixed sand concrete is better than that of common concrete. However, the toughness of recycled concrete mixed sand concrete is just on the contrary.
    廢棄礦物摻合料對混凝土收縮抗裂性能影響研究
    廢棄礦物摻合料對混凝土收縮抗裂性能影響研究
    • 林 聰,劉福勝,任淑霞,趙井輝,高文濤
    2014年第6期
    摘要
    引用本文
    摘 要:研究了花崗巖石粉、粉煤灰、石屑石粉單摻(10%、20%、30%),以及雙摻對混凝土收縮抗裂各項性能的影響。結果表明,花崗巖石粉、石屑石粉摻量20%、粉煤灰摻量30%為最優摻量,花崗巖石粉與粉煤灰、石屑石粉與粉煤灰均按1:2雙摻最優。 Abstract: The influences of single doped 10% granite powder, 20% fly ash or 30% stone chip powder and double mixing 20% of the granite powder and fly ash or 20% of stone chip powder and fly ash on the shrinkage and crack properties of concrete are studied. The results show that the optimal content of the granite powder, stone chip powder and fly ash is 20%, 20% and 30% respectively; the co-doped optimal proportions of the granite powder and fly ash, stone chip powder and fly ash are the same, all 1:2.
    工業廢棄料水泥砂漿電磁屏蔽性能研究
    工業廢棄料水泥砂漿電磁屏蔽性能研究
    • 莊志勇,趙若紅,傅繼陽,區浩文
    2014年第6期
    摘要
    引用本文
    摘??要:選擇工業廢棄料鋼屑和鐵砂作為屏蔽介質,摻入到水泥材料中制得水泥基復合屏蔽材料,研究其屏蔽效能和導電性能。結果表明,鋼屑水泥基復合材料的導電性能和電磁屏蔽效能會隨著鋼屑含量的增加而顯著增加,在0.3~3GHz頻率范圍內屏蔽效能最大達到35.65dB,電阻率僅為34.43,另外,水泥基復合材料的厚度對其電磁屏蔽效能影響較大,隨著厚度增加其屏蔽效能顯著增加。Abstract:Thecement-basedcompositeshieldingmaterialismadeofcementandshieldingmediums,whichareindustrialwastematerials-steelscrapandironsand.Theeffectsoftheseshieldingmediumsonshieldingpropertiesandelectricvolumeresistivityarestudied.Theresultsindicatethatwhenthecontentofsteelscrapincrease,theshieldingeffectivenessandconductivepropertiesofthesteelscrap-cementcompositesareimprovedgreatly.Theshieldingeffectivenessofcompositesisshownupto35.65dBin0.3-3GHzfrequencyrange,andtheresistivityoftheconductivecompositesisonly34.43.Inaddition,thethicknessofthecompositeshasanobviousinfluenceonitselectromagneticshieldingeffectiveness,whenthethicknessincrease,theshieldingeffectivenessisimprovedobviously.
    橡膠顆粒對再生混凝土抗壓強度影響試驗研究
    橡膠顆粒對再生混凝土抗壓強度影響試驗研究
    • 范鵬飛,許家文,李 珠
    2014年第6期
    摘要
    引用本文
    摘 要:通過在再生混凝土中加入不同摻量的橡膠顆粒和納米材料,分析了橡膠顆粒、納米材料和齡期對再生混凝土的抗壓強度影響。試驗表明,抗壓強度隨著再生混凝土中橡膠顆粒的摻量的增加而降低,當再生混凝土中的橡膠顆粒摻量為3%時,混凝土的立方體抗壓強度和軸心抗壓強度降低量最不明顯,分別降低7.73%和6.19%;摻入納米材料可以較大幅度的提高再生混凝土的抗壓強度,尤其可以提高再生混凝土的早期強度;再生混凝土的早期強度增長速度較大,而后期增長效果并不明顯。 Abstract: Through adding different contents of rubber particles and nano-materials into the recycled concrete, the influences of rubber particles, nano-materials and ages on the compressive strength of recycled concrete are analyzed. The results show that the compressive strength of recycled concrete reduces with the increasing of rubber content, and when the rubber content is 3% in the recycled concrete, the cube compressive strength and axial compressive strength of concrete reduce by 7.73% and 6.19% respectively; Nano-materials can significantly increase the compressive strength of recycled concrete, especially for the early strength of recycled concrete, but it’s not obvious effect on the later strength growth of recycled concrete.
    粉砂土質地鐵車站深基坑支護有限元模擬分析
    粉砂土質地鐵車站深基坑支護有限元模擬分析
    • 孟文清,李亞龍,張亞鵬
    2014年第6期
    摘要
    引用本文
    摘 要:應用ANSYS有限元軟件,模擬文匯路地鐵車站明挖深基坑支護中土體和支護結構的應變和位移,選擇了合理的支護結構和土體的有限元設計參數,分析了基坑可能產生的變形與破壞形式。通過實際施工監測結果,驗證了有限元模擬的設計參數的合理性,提出了設計與施工中應采取的應對措施。 Abstract: The deep foundation pit of the wenhui rod subway station was simulated by the element software of ANSYS to get the displacement and strain of the soil and supporting structure. The reasonable finite element design parameters of the supporting structure and the soil are chose, and the potential deformation and failure mode of the pit are analyzed. In addition, based on the actual construction monitoring results, the reasonableness of the design parameters of the finite element simulation is verified, and the response measures for the design and construction are put forward.
    錘擊沉樁施工對土層孔隙水壓力影響的試驗研究
    錘擊沉樁施工對土層孔隙水壓力影響的試驗研究
    • 徐 莉
    2014年第6期
    摘要
    引用本文
    摘 要:通過現場試驗,研究了錘擊法沉樁對周邊土孔隙水壓力的影響。試驗結果表明,錘擊法沉樁會引起樁周粘土層孔隙水壓力急劇上升,但在第二天就能基本消散掉。粉砂、粉土層由于有較好的排水特性,孔隙水壓力的增長相對要小得多。 Abstract: Base on the field test, the influence of pile-sinking with hammering method on the pore water pressure in soils around is studied. The test results show that the pore water pressure can be increased rapidly due to pile-sinking with hammering method, but it can be scattered nearly on the second day. There is fewer increase of the pore water pressure in sand and silt layers as a result of the good drainage characteristics.
    JC/T 2162-2012《預應力混凝土樁安全生產要求》標準簡介
    JC/T 2162-2012《預應力混凝土樁安全生產要求》標準簡介
    • 蔣元海
    2014年第6期
    摘要
    引用本文
    摘 要:簡述了建材行業標準JC/T 2162-2012《預應力混凝土樁安全生產要求》的編制背景、編制目的和意義,詳細說明了標準條文的具體內容,提出了實施過程中應注意的問題。 Abstract:Abstract:The compilation background, purpose and significance of building material industry standard JC/T 2162-2012 "Safety production requirements for prestressed concrete piles" are introduced, and the main items of the standard are explained. Meanwhile, some problems that should be paid attention to during the process of implementing the JC/T 2162-2012 industry are put forward.
    鈦礦渣制備加氣混凝土的研究
    鈦礦渣制備加氣混凝土的研究
    • 朱曉燕1,2,包文忠2,趙文新2,張 黎2
    2014年第6期
    摘要
    引用本文
    摘??要:以低活度鈦礦渣為原材料,制備出容重為700kg/m3的加氣混凝土,同時以不同原材料摻量對加氣混凝土強度的影響進行了研究,研究表明,添加NaOH能提高鈦礦渣的活性,提高礦渣中SiO2在高溫下的溶解度,從而提高試體抗壓強度;加氣混凝土的強度隨著石灰摻量的增加而增大,摻量為25%時,前期有較高的強度,對后期強度影響較??;鈦礦渣摻量在低于20%時,加氣混凝土隨鈦礦渣的摻量增加而增大,但鈦礦渣摻量不宜超過20%。Abstract:Theaeratedconcretewith700kg/m3bulkdensitypreparedusingalowactivitytitaniumslagasrawmaterial,andtheeffectofdifferentrawmaterialcontentonthestrengthofaeratedconcretewasstudied.TheresultshowsthatthetitaniumslagactivationcanbeactivatedbyaddingNaOH,andthesolubilityofSiO2athightemperaturesincreasewithincreasingtheNaOHcontent.Aeratedconcretestrengthincreasewithincreasinglimecontent,whenthecontentis25%,theearlystrengthofconcreteishigher,butithaslittleeffectonthelaterstrength;whenthetitaniumslagashcontentislessthan20%,aeratedconcretestrengthincreasewiththeincreasingtheitaniumslagashcontent,butthecontentshouldnotexceed20%.
    剛度特征值對框架-剪力墻結構抗震性能的影響研究
    剛度特征值對框架-剪力墻結構抗震性能的影響研究
    • 蔡 龍1,杜宏彪2,金仁和1
    2014年第6期
    摘要
    引用本文
    摘 要:剛度特征值是影響框架-剪力墻結構受力狀態和變形特征的主要參數,本文采用有限元軟件SATWE對不同剛度特征值的8個框架-剪力墻結構模型進行了分析計算,研究了在地震作用下剛度特征值對框架-剪力墻結構抗震性能的影響,并給出了確定框架- 剪力墻結構合理剪力墻數量的剛度特征值建議值。 Abstract: Stiffness characteristic value is the main parameter influencing the mechanical behaviors and deformation characteristics of frame-shear wall structure. Here, eight models of frame-shear wall structure of different stiffness characteristic value are analyzed and calculated by SATWE finite element program,meanwhile, the influence of the stiffness characteristic values on seismic behavior of frame-shear wall structure under horizontal seismic action is studied. In addition, the recommended stiffness characteristic value is presented to determine a reasonable quantity of shear wall of frame-shear wall structure.
    泡沫混凝土保溫板在預制混凝土夾心保溫墻體中的熱工耐久性研究
    泡沫混凝土保溫板在預制混凝土夾心保溫墻體中的熱工耐久性研究
    • 樊 均,管 文
    2014年第6期
    摘要
    引用本文
    摘 要:通過模擬試驗監測了預制混凝土夾芯保溫墻體中泡沫混凝土保溫層的溫濕度變化情況,并針對環境因素(濕度、干濕循環、堿液循環、凍融循環)對預制混凝土泡沫混凝土夾心保溫板熱工耐久性進行了研究。 Abstract: The changes of temperature and humidity of the foam concrete insulation layers in precast concrete sandwich insulation wall are monitored through the simulation test, and the effect of environmental factors (moisture, dry-wet circulation, lye recycle, freeze-thaw cycles) on the thermal durability of the precast foam concrete sandwich insulation plate are studied.
    上一頁
    1
    2
    3

    關注《混凝土與水泥制品》

    總訪問量 468,401   網站統計

    官方微信公眾號關閉
    蘇州混凝土水泥制品研究院有限公司

    關于我們    |    聯系我們    |    訂購雜志    |    回到頂部

    版權所有:中國混凝土與水泥制品網  蘇ICP備10086386號   網站建設:中企動力 蘇州

    版權所有:中國混凝土與水泥制品網

    蘇ICP備10086386號

    網站建設:中企動力 蘇州

    国产偷窥摄综合色区
      <table id="qrkot"><ruby id="qrkot"></ruby></table>
    1. <acronym id="qrkot"></acronym>
    2. <tr id="qrkot"><s id="qrkot"></s></tr>
    3. <table id="qrkot"><option id="qrkot"></option></table>
    4. <big id="qrkot"><ruby id="qrkot"></ruby></big>
    5. <track id="qrkot"></track>