<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

    第十一期

    稻殼灰混凝土的力學性能和耐久性研究
    稻殼灰混凝土的力學性能和耐久性研究
    • 張 霄
    2015年第11期
    摘要
    引用本文
    摘 要:將稻殼灰等量部分替代水泥加入到混凝土中制備稻殼灰混凝土,并對稻殼灰混凝土進行7d和28d齡期的力學性能、抗凍性能、抗氯離子滲透性能和抗酸侵蝕性能的測試。結果表明,稻殼灰的加入能夠顯著地改善混凝土的內部結構,使其更加密實,從而增強了稻殼灰混凝土的力學性能、抗凍性能、抗氯離子滲透性能和抗酸侵蝕性能。當稻殼灰的摻量為20%時,混凝土的性能最佳,此時稻殼灰對混凝土的增強效果最好。 Abstract: The rice husk ash for same amout is added into concrete for preparing rice husk ash concrete. The mechanical properties at 7d and 28d, frost resistance, chloride penetration resistance and acid resistance properties of rice husk ash concrete are investigated. The results show that adding rice husk ash can improve the structure of concrete, which can finally enhance the mechanical properties, frost resistance, chloride penetration resistance and acid resistance properties. The maxmum properties of rice husk ash concrete is obtained with the 20% dosage of rice husk ash, at this time, the strengthending effects of rice husk ash on concrete is best.
    廢棄混凝土中硬化水泥漿體的再生實驗研究
    廢棄混凝土中硬化水泥漿體的再生實驗研究
    • 張慧勇,張新愛
    2015年第11期
    摘要
    引用本文
    摘 要:廢棄混凝土中的硬化水泥漿體是資源、能源消耗最大、環境負荷最重、經濟成本最高的部分,本文研究了硅酸鹽脫水相的制備及其相關表征,研究表明,硬化后的水泥漿體在經過煅燒處理后能得到一種名為硅酸鹽脫水相的物質,該物質遇水后能再次發生水化反應而得到具有強度的硬化結構體,其中以650℃煅燒溫度下得到的硬化水泥漿體脫水相水化后強度最大。同時,還對硅酸鹽脫水相-硅微粉系的性能進行了研究,為改善脫水相的強度,加入硅微粉進行了改性,發現加入硅微粉后有強度增加的趨勢。 Abstract: The hardened cement paste in waste concrete is the part of the largest energy and resource consumption, the worst environmental impact and the most economic costs. The preparation of silicate dehydration phase and characterization are studied. The results show that a material called silicate dehydration phase can be obtained from the hardened cement paste after calcination, and rehydration hardening structure is obtained by adding silicate dehydration phase substance and water. The biggest rehydration strength of hardened cement paste dehydration phase is derived at 650℃. The research on performance of silicate dehydration phase-silica powder is studied. In order to improve the strength of dehydration phase, the modification for adding silica powder is carried out, the strength is improved after adding microsilica powder.
    圖解超長大體積混凝土結構施工關鍵技術
    圖解超長大體積混凝土結構施工關鍵技術
    • 吳龍生1,周 迅2,許 飛1,李 俊2
    2015年第11期
    摘要
    引用本文
    摘??要:泰州金融服務區二層地下室整體工程建筑面積約為18.68萬m2,基礎埋深為-19.50m,局部為-12.15m。以圖示方法探討了合理劃分超長大體積混凝土結構施工區域(段)方法,歸納了跳倉法施工的具體步驟,分析了針對本工程特點采取的施工技術措施和組織措施,重點介紹了后澆帶施工技術措施、施工縫處置技術措施、鋼管混凝土柱澆筑方法、頂板混凝土防收縮裂縫措施,可為類似工程施工提供參考。Abstract:Thetwo-floor-undergroundbasementprojectofTaizhoufinancialservicecentrewitha-19.50meterembeddeddepthoffoundationand-12.15meterlocalburieddepthcoversanareaofabout186,800squaremeters.Illustratingasanimportantcarrier,thereasonabledivisionforconstructionareasofsuper-longconcretestructureconstructionisdiscussed,withasummaryoftheprocessesofthejumpwarehouseconstruction,measuresofconstructiontechnologyandorganizationalmeasuresofthisengeneeringareanalyzed,processesoftheconstructionofpost-caststrip,treatmentofconstructionjoints,thepreventionofroofconcreteshrinkagecrackandconcrete-filledsteeltubeareintroducted,whichcanprovidereferenceforprojects.
    聚苯顆粒泡沫混凝土性能的影響因素研究
    聚苯顆粒泡沫混凝土性能的影響因素研究
    • 權娟娟,馬 斌
    2015年第11期
    摘要
    引用本文
    摘 要:研究了聚苯顆粒摻量為2400mL、2600mL、2800mL時各因素對泡沫混凝土性能的影響,確定了原料最佳配合比。結果表明,以比強度為考核指標時,最佳配合比為:水膠比0.65、泡沫摻量3500mL、聚苯顆粒摻量2800mL;以導熱系數為考核指標時,最佳配合比為:水膠比0.55、泡沫摻量2500mL、聚苯顆粒摻量2400mL??捉Y構分析表明,摻加聚苯顆粒泡沫混凝土的孔隙率增大和孔隙尺寸降低,都會明顯提高其力學性能。 Abstract: The effects of various factors on properties of foam concrete are studied when polystyrene particles dosage is 2400mL, 2600mL and 2800mL, the best mix ratio of raw materials is determined. The results show that with the specific strength as assessment indicators, the best mixing ratio include that water/cement ratio is 0.65, foam dosage is 3500mL, polystyrene particles dosage is 2800mL; with the thermal conductivity as assessment indicators, the best mixing ratio include 0.55 water/cement ratio, 2500mL foam dosage, 2400mL polystyrene particles dosage. Pore structure analysis indicate that by adding polystyrene particles, porosity of foam concrete is increased and pore size of foam concrete is decreased, which can obviously improve its mechanical properties.
    玄武巖纖維對膨脹珍珠巖-聚合物復合保溫砂漿性能影響研究
    玄武巖纖維對膨脹珍珠巖-聚合物復合保溫砂漿性能影響研究
    • 孟 瑋1,陳 蓓1,吳麗雅2
    2015年第11期
    摘要
    引用本文
    摘 要:通過正交試驗方法對保溫砂漿的性能指標進行了研究,得到初步配合比,在此基礎上研究了玄武巖纖維的添加對復合保溫砂漿性能的影響。結果表明,玄武巖纖維的摻入對復合保溫砂漿試件的抗壓強度、壓折比有明顯的改善效果,對材料的導熱系數改善效果不明顯。 Abstract: The research on performance index of thermal insulation mortar is carried out through orthogonal test method, preliminary mixture ratio is obtained, on the basis, the influence of adding basalt fiber on thermal insulation mortar is studied. The result shows that the effects of adding basalt fiber on compressive strength and crushing ratio of composite insulation mortar are obviously improved. However, improving effect on thermal conductivity of materials is not obvious.
    新型泡沫混凝土輕質墻板外掛節點力學性能試驗研究
    新型泡沫混凝土輕質墻板外掛節點力學性能試驗研究
    • 谷 倩,周 珣,舒 松,李 博
    2015年第11期
    摘要
    引用本文
    摘 要:外掛墻板在建筑結構中廣泛應用,新型泡沫混凝土外掛墻板與框架的連接節點對這種結構的安全性及可靠度有重要的影響。為研究該連接節點的受力機理及破壞模式,對兩種配合比的泡沫混凝土分別預埋兩種不同形式的節點,對其進行節點抗彎試驗以及節點抗剪試驗研究,系統對比不同形式的連接節點以及不同配合比的泡沫混凝土墻板對節點承載力的影響,分析墻板在荷載作用下的裂縫開展情況以及荷載-位移曲線。試驗結果表明:雙面鋼板節點有良好的承載力、節點破壞后于墻板本身破壞,能實現墻板與框架安全有效的連接;在預埋雙面鋼板節點情況下,無陶粒配合比的泡沫混凝土與預埋節點的協同工作性能優于陶粒配合比的泡沫混凝土。 Abstract:External precast wall panels are widely used in building structure, the connection node between the new foam concrete external precast wall panels and framework have an important impact on the safety and reliability. To study the force mechanisms and failure modes of connections node, different foam concrete with mix proportion are used by two different embedded forms of connection node, the investigation for bending and shearing test of connections is carried out. Compared with different forms of node and different mix proportion of foam concrete wall panel by system, which have effects on capacity of node, as well as cracks development of wall panels under loading and the load-displacement curve are analyzed. The results show that, duplex steel node has good capacity, node destroy itself after the damage of wall panels, safe and effective connection between wall panels and frame can be achieved; under the situation of embedded duplex steel node, the work performance of foam concrete with non-ceramic mix proportion and embedded node is better than foam concrete with ceramic mix proportion.
    預應力碳纖維板錨固鋼筋混凝土梁抗彎試驗研究
    預應力碳纖維板錨固鋼筋混凝土梁抗彎試驗研究
    • 郭 蓉1,2,吳二朋1,歐高龍1
    2015年第11期
    摘要
    引用本文
    摘 要:對3根梁進行了試驗,一根為對比梁,一根為普通碳纖維板加固,一根為預應力碳纖維板加固,研究了碳纖維板對鋼筋混凝土梁的加固效果。同時設計了一套較為可靠的張拉錨固設備,制定了一套較完整的張拉工藝。通過梁抗彎試驗,對應變、撓度、承載力進行了研究。試驗證明,加固梁的開裂荷載均有提高,但提高不明顯,極限荷載提高幅度較大,且預應力碳纖維板加固梁較普通碳纖維板加固提高更多;在增加梁的剛度、降低延性發展方面,預應力碳纖維板加固效果更好;試驗過程中碳纖維板未出現滑移,錨固效果良好,有效地延緩了碳纖維板的剝離破壞。 Abstract: The experiment of three beams which include a beam contrast, an ordinary carbon fiber reinforcement and a prestressed carbon fiber reinforcement, is carried out. The reinforced effect of carbon fiber slab on reinforced concrete beam is studied. At the same time, the tension anchor equipment is designed, and the complete tension technology is formulated. Through beam bending test, strain, deflection and capacity are studied. Experiment shows that cracking load of reinforced beam is increased, but not obvious, ultimate load increase is relatively improved, and prestressed reinforced concrete beams increases more than ordinary carbon fiber reinforced; in the aspect of increasing stiffness of the beam and decreasing ductility, reinforced effects of prestressed carbon fiber slab is better; slip does not occur during the experiment process, the anchor effect is good, which can effectively delay debonding failure of carbon fiber slab.
    三維空間織物增強活性粉末混凝土薄板抗彎力學性能試驗研究
    三維空間織物增強活性粉末混凝土薄板抗彎力學性能試驗研究
    • 惠 雷1,荀 勇2,徐業輝1,陳 賀3
    2015年第11期
    摘要
    引用本文
    摘 要:對應用了活性粉末混凝土(RPC)作為基體材料的薄板力學性能進行了研究,提出了織物增強混凝土(TRC)薄板研究的四點抗彎試驗方法;進行了薄板抗彎力學性能研究,其中一組3個薄板由RPC直接現澆而成,另一組3個配置了空間間隔織物網,得到了增加空間織物網后的抗彎力學性能。 Abstract: Mechanical properties of thin plant for reactive powder concrete as based material is studied, four-point bending expeimental method of TRC thin plant is proposed, the mechanical properties of thin plant is carried out. One group for three thin plant is cast directly by RPC, another group for three thin plant is configured by spacer fabrics net flexural mechanical properties after increasing spacer fabrics net are obtained.
    纖維筋混凝土的阻尼特性影響因素分析
    纖維筋混凝土的阻尼特性影響因素分析
    • 李勛峰1,杜嘉雯2,姚 運3
    2015年第11期
    摘要
    引用本文
    摘 要:為保證建筑結構在震動中的安定性,對影響混凝土阻尼性能的因素進行了分析,考察了纖維筋混凝土縱向配筋率、筋材類型、箍筋間距和構件尺寸等因素對混凝土阻尼性能的影響。通過懸臂梁自由振動裝置和三點彎曲梁式大尺寸材料阻尼測試裝置對纖維筋混凝土阻尼比和損耗因子的測定,結果表明,阻尼比和損耗因子都可以表征混凝土構件的阻尼性能,縱向配筋率在0.9%以上時對混凝土阻尼性能影響不大,混凝土阻尼性能的提高隨著箍筋間距的縮小和筋材表面粗糙度的增大以及加載頻率的降低而增大,而構件尺寸則對混凝土阻尼性能影響不大。 Abstract: To ensure the stability of buildings structure in shocking, effecting factors of concrete damping property are analysed, the influence of longitudinal reforcement ratio of fiber reinforced concrete, reinforcing types, stirrup spacing and dimension of component on concrete damping property is studied. The damping ratio of fiber reinforced concrete and damage factor are tested by free vibration cantilever device and damping test device for three-point dynamic bending dimension material, the results show that the damping property could be characterized by damping ratio and loss factor, the damping property kept steady when longitudinal reinforcement ratio reaches 0.9%, damping property of concrete increases with decreased the stirrup spacing and increased the surface roughness, and decreased load frequency, dimension of component has little effect on damping property.
    纖維橡膠骨料混凝土彎曲韌性關鍵影響因素研究
    纖維橡膠骨料混凝土彎曲韌性關鍵影響因素研究
    • 史喜珍
    2015年第11期
    摘要
    引用本文
    摘 要:以彎拉應變和應變能密度為主要評價指標,研究了橡膠粉表面改性和摻量、纖維摻量、砂率和水灰比等因素對橡膠混凝土彎曲韌性的影響,并通過方差分析得出了影響彎曲韌性的關鍵因素。試驗結果表明,橡膠粉表面改性能明顯提高橡膠混凝土的彎拉應變和應變能密度,顯著改善彎曲韌性;隨著橡膠粉和纖維摻量的增大,彎拉應變和應變能密度呈現先增大后減小的變化規律,當橡膠粉摻量為10%,纖維摻量為1.0%時,彎曲韌性最好;當砂率小于0.32時,增大砂率能提高彎曲韌性,而當砂率大于0.32時,再增大砂率反而會使彎曲韌性降低;彎拉應變和應變能密度隨水灰比的增大呈拋物線規律變化,當水灰比為0.39時,彎曲韌性最佳。 Abstract: Using flexural tensile strain and strain energy density as the main evaluation, the influence of rubber powder surface modification and content, fiber content, sand and cement ratio and water-cement ratio on flexural toughness of rubberized concrete is studied, and the key factors affecting the flexural toughness is obtained through analysis of variance. The results show that the flexural tensile strain and strain energy density of rubber concrete can increased obviously by rubber powder surface modification, and bending toughness is significantly improved; with the increasing of rubber powder and fiber content, the flexural tensile strain and strain energy density increase first, then decreases. When the rubber powder content is 10%, fiber content is 1.0%, the flexural toughness is the best; when the sand rate is less than 0.32, increasing sand rate can improve the flexural toughness, however, when sand ratio is more than 0.32, increasing sand rate decreases flextural toughness. With the increasing water-cement ratio, flexural tensile strain and strain energy density increase parabolic law changes, when water-cement ratio is 0.39, the bending toughness is the best.
    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>