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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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    第一期

    高速公路工程中混凝土的裂縫與防治
    高速公路工程中混凝土的裂縫與防治
    • 吳文棟1,劉文杰2,盧桂霞1,曾 尤1
    2011年第1期
    摘要
    引用本文
    摘 要:結合郴寧高速公路建設和施工實踐過程中出現的裂縫問題,闡述了混凝土裂縫的種類和成因,并針對具體問題從原材料選用到施工過程控制提出了相應的防治與處理措施。 Abstract: Combining with the concrete cracks problems in construction and practical process in Chenzhou-Ningyuan Expressway, types and causes of concrete cracks are presented, and the corresponding preventions and measurements in actual constructions, including selection of raw materials and control of construction process, are offered.
    預拌CF60泵送混凝土在工程中的應用
    預拌CF60泵送混凝土在工程中的應用
    • 肖麗君,孫 貝
    2011年第1期
    摘要
    引用本文
    摘 要:介紹了工程項目中CF60泵送混凝土的生產與應用經驗。在如何控制水泥用量、降低混凝土水化熱、保證鋼纖維均勻分布等方面進行了探索和研究,解決了在較長運距和較高鋼纖維摻量情況下,如何控制坍落度,保證混凝土工作性的問題。 Abstract::Production and application experience of CF60 pumping concrete for a project are introduced. The controlling cement amount, decreasing hydration heat of concrete, distribution of steel fibre concrete and other fields are discovered and researched, and the problems of controlling the slump and keeping workability of concrete are solved under the situation in long transport distance and high dosage of steel fibre.
    珠江大橋深水雙壁鋼圍堰套箱施工
    珠江大橋深水雙壁鋼圍堰套箱施工
    • 粟學平
    2011年第1期
    摘要
    引用本文
    摘 要: 以新建珠江大橋為例,介紹了該橋深水雙壁鋼圍堰施工的關鍵技術。結合主橋22#和23#橋墩的不同地質條件,采用不同的施工工序,降低了施工難度,保證了施工質量。 Abstract:The key technology of the deep double-wall steel cofferdam construction of new Zhujiang River Bridge is introduced. Combining with the different geological conditions of the main bridge pier 22# and 23#, different construction sequences are used and the difficulties of construction are reduced, which can ensure the construction quality.
    結構混凝土新型免拆卸水泥復合模板及其制備工藝
    結構混凝土新型免拆卸水泥復合模板及其制備工藝
    • 周雙喜1,揭保如2,揭建剛2,葉翼翔1
    2011年第1期
    摘要
    引用本文
    摘 要:在現有結構體系的基礎上,提出了一種利用結構混凝土保護層制作與其厚度相仿的新型免拆卸水泥復合模板,在施工過程中,作為結構混凝土的一部分,形成永久性模板。介紹了該模板的組成材料、構造及模板質量。并對板底混凝土-免拆卸水泥復合模板體系進行了不同荷載作用的受力分析,結果表明,免拆卸復合水泥模板與試件粘結牢固。 Abstract: Based on current structure system, a new type of cementitious composite material formwork without being removed prepared by configuration concrete cover is put forward for substituting traditional concrete cover. It is regarded as a part of the configuration concrete during the process of construction and to form a permanent formwork. The composing materials, constitution and quality of new formwork without being removed are introduced, and mechanical analysis is made under different loading in the system of concrete of broad bottom and new formwork without being removed. The results show that the interface is hard felted between formwork and configuration concrete.
    無機填料對聚合物防水砂漿性能的影響研究
    無機填料對聚合物防水砂漿性能的影響研究
    • 薛力梨,仲勤芳,劉紅飛
    2011年第1期
    摘要
    引用本文
    摘 要:研究了納米凹土、沸石與聚合物以一定配比復合后對防水砂漿凝結時間、抗壓、抗折強度、粘結強度以及抗滲壓力的影響。結果表明,單摻沸石8%、10%時,對聚合物防水砂漿的性能改善效果最佳。 Abstract: The influences of nano-attapulgite clay, zeolite and polymer mixed with special proportion on coagulation time, compressive strength, flexural strength, bonding strength and permeability stress of the waterproof mortar are researched. The results show that when zeolite content is 8% and 10%,the properties of polymer waterproof mortar are improved to the optimum effect.
    ?;⒅楸鼗炷凛S心抗壓強度的試驗研究
    ?;⒅楸鼗炷凛S心抗壓強度的試驗研究
    • 孫繼紅,張澤平,李 珠
    2011年第1期
    摘要
    引用本文
    摘 要:通過對?;⒅楸鼗炷凛S心抗壓強度與立方體抗壓強度的測定,分析了棱柱體的破壞特征及應力—應變全曲線,并回歸了?;⒅楸鼗炷恋妮S心抗壓強度與立方體抗壓強度的關系式和峰值應變公式,為進一步研究?;⒅楸鼗炷烈约安捎迷摶炷吝M行結構設計提供了理論和參考依據。 Abstract: Through determining the axial compressive strength and cube compressive strength of thermal insulation glazed hollow bead concrete, damage characteristics and stress-strain curves of prism are analyzed, and the relationship between the axial compressive strength of thermal insulation glazed hollow bead concrete and cube compressive strength and the formula of peak stress are returned, which provides the theory and reference for the further study of thermal insulation glazed hollow bead concrete and structural design using this concrete.
    C25噴射聚丙烯纖維混凝土的試驗研究
    C25噴射聚丙烯纖維混凝土的試驗研究
    • 王可良1,劉 玲2,
    2011年第1期
    摘要
    引用本文
    摘 要:根據聚丙烯纖維的作用機理,試驗研究了不同聚丙烯纖維摻量對C25混凝土拌合物性能、混凝土早期和后期的抗壓強度、抗滲性能、劈裂抗拉強度及塑性裂縫的影響。研究表明,聚丙烯纖維具有增稠、顯著降低混凝土塑性裂縫作用,適當的摻量能改善混凝土的強度。 Abstract: IBased on mechanism of polypropylene fiber, the effects of different dosages of polypropylene fiber on mixture performance, early and later compressive strength, impermeability, splitting tensile strength and plastic cracks of C25 concrete are studied. The results indicate that polypropylene fiber has the functions of thickening, remarkably reducing plastic cracks and improving strength of concrete by proper dosage.
    混雜纖維混凝土在地鐵管片中的應用
    混雜纖維混凝土在地鐵管片中的應用
    • 寧 博1,歐陽東1,2,易 寧2,魯劉磊2,易承波2,潘 攀1,吳亭亭1
    2011年第1期
    摘要
    引用本文
    摘 要:從技術和經濟角度分析了混雜纖維混凝土管片取代傳統管片的必要性和可行性,介紹了國內外混雜纖維混凝土管片的工程應用情況,并從設計計算、施工控制、經濟效益等方面提出了混雜纖維混凝土管片存在的問題及解決方法。 Abstract: From the aspects of technology and economy, the necessity and feasibility of hybrid fibers reinforced concrete segments replacing common segments are analyzed. The engineering applications on hybrid fibers reinforced concrete segment at home and abroad are introduced. From the aspects of design calculation, construction control, economic benefit and so on, the problems and solutions of hybrid fibers reinforced concrete segment are proposed.
    弱擠土樁承載能力研究
    弱擠土樁承載能力研究
    • 周 乾1,吳發紅1,何 山1,戴龍洋2,仲 躍2
    2011年第1期
    摘要
    引用本文
    摘 要:針對弱擠土樁的斷面特點,設計了不同箍筋型式的試件;對試驗結果進行分析,得出了影響弱擠土樁樁身承載能力的主要因素。 Abstract: Aiming at the cross characteristic of weak soil-compacting piles, the different stirrup samples are designed. The testing results are analyzed, and the main factors of pile capability affecting the weak soil-compacting piles are obtained.
    高壓蒸養與免高壓蒸養PHC管樁預應力損失試驗研究
    高壓蒸養與免高壓蒸養PHC管樁預應力損失試驗研究
    • 吳 鋒1,周資斌2,邱 松1,卓 楊1
    2011年第1期
    摘要
    引用本文
    摘 要:針對現有高壓蒸養和免高壓蒸養兩種不同養護工藝生產的PHC管樁,本文開展了PHC管樁的預應力損失試驗研究。采用兩種不同的測試方法,系統地研究了不同養護工藝的PHC管樁放張、混凝土收縮徐變和鋼棒松弛等各階段的預應力損失,對比分析了養護工藝對PHC管樁預應力損失的影響,為準確計算其極限承載力提供了必要的試驗依據,并驗證了兩種測試方法的準確性和可靠性。 Abstract:For two different existing curing processes of PHC pile production, which are the high-pressure steam curing and the atmospheric steam curing, the experimental research on the prestressed loss of PHC piles is carried out. Through two different testing methods, the prestressed losses of PHC piles by different curing processes during each stage in the production processes, such as pile tension, concrete shrinkage and creep and steel relaxation are systematically researched. In addition, comparative analysis on the impact of different curing processes on the prestressed loss of PHC piles is conducted, which not only provides a necessary experimental basis of calculating the ultimate bearing capacity, but also verifies the accuracy and reliability of these two testing methods.
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