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    蘇州混凝土水泥制品研究院有限公司

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    第十二期

    石灰石粉取代粉煤灰在泵送混凝土中的試驗研究
    石灰石粉取代粉煤灰在泵送混凝土中的試驗研究
    • 馮桂云1,曹雙梅1,吳江源2
    2012年第12期
    摘要
    引用本文
    摘 要:通過對比試驗探討了石灰石粉以不同比例取代粉煤灰對混凝土的工作性能、力學性能等的影響。試驗結果表明,適宜的石灰石粉摻量可提高混凝土的坍落度,減少混凝土坍落度的經時損失,并提高混凝土強度。 Abstract: By comparison test, the effects of the limestone powder replaced with fly ash as different proportions on the workability and mechanical properties of concrete are discussed. The test results indicate that suitable amount of limestone powder can improve the slump of concrete, reduce the concrete slump loss, and increase the strength of concrete.
    某高層建筑深基坑支護設計與施工
    某高層建筑深基坑支護設計與施工
    • 賈淑明,陶炳芳
    2012年第12期
    摘要
    引用本文
    摘 要:以深圳某高層建筑深基坑支護的設計與施工為例,總結并分析了緊鄰周邊建筑及市政交通干道的巖質邊坡深基坑支護工程的設計、施工方面的成功經驗和教訓?;颖O測結果顯示,支護結構位移及周邊建筑最大沉降滿足要求 Abstract: Taking the design and construction of deep foundation pit supporting of a high-rise building in Shenzhen as an example, the experience and lessons are summed up and analyzed about the design and construction of deep foundation pit supporting, which is adjacent to buildings and urban transportation lines. The deep foundation pit monitoring result shows that the supporting displacement and maximum settlement of adjacent buildings can reach the requirements in the specification.
    大梢徑高等級電桿張拉裝置的設計和選用
    大梢徑高等級電桿張拉裝置的設計和選用
    • 王江民
    2012年第12期
    摘要
    引用本文
    摘 要:介紹了大稍徑高等級電桿張拉裝置的選用、額定張拉力和行程,并選用一種張拉裝置具體介紹了該裝置前后、左右及上下移動的設計思路。 Abstract: The tensioning device selection, rated tension and stroke of high grade poles with a large tip diameter are introduced, and a design method of moving of front and behind, left and right, up and down of a kind of tensioning devices is also introduced.
    HLC-ZS1預制簡支箱梁盆式橡膠支座灌漿料的研究
    HLC-ZS1預制簡支箱梁盆式橡膠支座灌漿料的研究
    • 王 冬1,祝燁然1,陳國新1,石明建2
    2012年第12期
    摘要
    引用本文
    摘 要:進行了基于硫鋁酸鹽水泥體系的預制簡支箱梁盆式橡膠支座灌漿材料的試驗研究,以硫鋁酸鹽水泥、礦粉和石膏為原材料,輔以骨料,高效減水劑、早強劑、緩凝劑等材料,通過合理的配合比探索,研制出了滿足《客運專線橋梁盆式橡膠支座暫行技術條件》要求的HLC-ZS1預制簡支箱梁盆式橡膠支座灌漿料。 Abstract: The experimental research on the grouting material support in the prefabricated box girders with tub rubber is carried out based on the aluminum sulfur acid salt cement system. With sulfur acid salt cement, slag powder and gypsum as raw material, through the reasonable proportion exploration, with the aggregates, efficient water reducing agent, early strength agent, retarder, etc., the HLC-ZS1 grouting material support in prefabricated box girders with tub rubber is prepared, which can meet the requirement of “Interim technology standard of rubber support with box girders for passenger lines”
    聚苯板插孔混凝土空心砌塊熱工性能有限元分析
    聚苯板插孔混凝土空心砌塊熱工性能有限元分析
    • 劉輝敏
    2012年第12期
    摘要
    引用本文
    摘 要:為提高混凝土空心砌塊的隔熱性能,采用有限單元法研究了聚苯板在其孔洞中的填充方式對熱阻的影響。結果表明,砌塊插孔呈矩形為佳。插孔長度不變,熱阻隨其厚度的增加而增加。插孔率一定,熱阻隨插孔排數的增加而增加;隨其列數的增加而降低。插孔交錯排列,熱阻增加。當插孔僅有部分填充時,聚苯板最好靠近砌塊的高溫面。 Abstract: To improve the heat-proof quality of concrete hollow blocks, the effects of the pattern of the polystyrene board inserting in its hole on the thermal performance are studied by finite element method. The results show that the appropriate shape of the jack is rectangle. Keeping the length of the jack, the blocks’ thermal resistance increases with its thickness increasing. Keeping the jack rate, the thermal resistance increases with the increasing of the jack’s rows, and reduces with the increasing of its columns. The thermal resistance increases when the jacks are arranged staggered. If only partial jacks are filled, it is better that the polystyrene board is close to the block’s hot face.
    不同類型水泥砂漿的抗酸腐蝕性能研究
    不同類型水泥砂漿的抗酸腐蝕性能研究
    • 韋有波
    2012年第12期
    摘要
    引用本文
    摘 要:采用硅酸鹽水泥、硫鋁酸鹽水泥、硅灰、礦粉等膠凝材料配制不同類型的水泥砂漿,對其抗酸腐蝕性能進行了研究。將砂漿浸泡在pH值為2的硫酸溶液中進行腐蝕,測試特定腐蝕齡期的質量損失、強度損失、腐蝕深度等指標,評價砂漿的抗酸腐蝕性能。結果表明,硅酸鹽水泥系列砂漿的抗酸腐蝕性能優于硫鋁酸鹽水泥系列砂漿,礦粉、硅灰雙摻的硅酸鹽水泥砂漿抗酸性能最好。 Abstract: Acid corrosion resistance of mortars with different cementitious materials such as Portland cement, sulpho-aluminate cement, silica fume and slag is investigated. According to a series of designed experiments, acid resistance of mortars is tested by mass loss, strength loss and corrosion depth of specimens. The study reveals that the acid resistance of mortars with Portland cement is better than the one of sulpho-aluminate cement. When both mixed with the silica fume and slag, the acid resistance of mortars with Portland cement is best.
    輕骨料陶?;炷良袅拐鹦阅茉囼炑芯? />
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                          <a href="/product/2055.html" target="_parent" class="title"><i class="iconfont12"></i>輕骨料陶?;炷良袅拐鹦阅茉囼炑芯?/a>
                        
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                                      <span class="attrValue"><i class="iconfont2"></i> 李艷艷1,2,杜   闖1,2,陳艷風1,2,劉   坤3</span>
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                                      <span class="attrValue"> 2012年第12期      </span>
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                            <div class="zhai"><i class="iconfont11"></i>摘要</div>
                            <div class="zhai1"><i class="iconfont11"></i>引用本文</div>
                            <span class="newMs">摘??要:通過四片不同配筋形式的輕骨料陶?;炷良袅Φ牡椭芡鶑退胶奢d試驗,研究了鋼筋的布置形式和鋼筋的級別對輕骨料陶?;炷良袅拐鹦阅艿挠绊?,包括承載力、剛度、延性、耗能能力等抗震指標。研究結果表明:采用斜向配筋形式的輕骨料陶?;炷良袅Ρ忍岣咪摻顝姸雀苡行У奶岣呓Y構的承載力、變形能力、耗能能力,延緩剛度退化,提高結構的安全儲備。Abstract:Throughthehorizontallowcyclicloadingtestsofdifferentreinforcementformoffourpiecesoflightweightaggregatehayditeconcreteshearwall,theinfluencesofthelayoutandthelevelofthereinforcementontheseismicperformanceofshearwallarestudied,includingthebearingcapacity,stiffness,ductilityandenergydissipationcapacity.Theresultsindicatethatthediagonalreinforcementformsoflightweightaggregatehayditeconcreteshearwallcanmoreeffectivelyimprovethebearingcapacity,deformationandenergydissipationcapacityofthestructurethanimprovingthereinforcedstrength,delaystiffnessdegradation,andimprovethesafetyreservesofthestructure.</span>
                         
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    玄武巖纖維增強泡沫混凝土性能的研究
    • 趙 星,霍冀川,高 亞,鄧 均,劉 煦
    2012年第12期
    摘要
    引用本文
    摘??要:以普通硅酸鹽水泥為結合劑,粉煤灰作摻合料,蛋白類發泡劑和玄武巖纖維,制備了粉煤灰-水泥基泡沫混凝土,探討了纖維的不同長度、不同摻量對表觀密度為900kg/m3的泡沫混凝土早期的性能的影響。結果表明,玄武巖纖維能提高泡沫混凝土早期的抗壓強度和抗折強度;吸水性能取決于泡沫混凝土的絕干密度;加入玄武巖纖維對泡沫混凝土的導熱系數有一定的增加,其中,纖維摻量的變化對泡沫混凝土的導熱系數影響較大。Abstract:WiththeordinaryPortlandcementascombinationagent,flyashasadmixture,proteinfoamingagentandbasaltfiber,theflyash-cementfoamedconcreteisprepared.Theeffectsofthefiberwithdifferentlengthanddifferentproportionontheearlyperformancesoffoamconcretewith900kg/m3apparentdensityarediscussed.Theresultsshowthatthebasaltfibercanimprovetheearlycompressivestrengthandflexuralstrengthoffoamedconcrete,thewaterabsorptionperformancemainlydependsonthedrydensityoffoamedconcrete,thecoefficientofthermalconductivityoffoamedconcretecertainlyincreaseswhenaddingthebasaltfiber,andthechangeofthefibercontentscanobviouslyaffectthecoefficientofthermalconductivityoffoamedconcrete.
    油菜秸稈纖維混凝土力學性能研究
    油菜秸稈纖維混凝土力學性能研究
    • 劉巧玲,劉保華 ,張 強
    摘要
    引用本文
    摘 要:研究了不同摻量及尺寸油菜秸稈纖維對混凝土表觀密度和抗壓強度的影響。結果表明,相同配合比條件下,隨著摻量的增大,油菜秸稈纖維混凝土表觀密度和抗壓強度均降低;但當秸稈纖維長度大于2.0cm時,抗壓強度降低幅度趨緩,且極限承載狀態下表現出良好的塑性。 Abstract: The influences of different content and size of cole straw on the apparent density and compressive strength of concrete are researched. The results show that under the same mix proportion conditions, with the increase of the amount of cole straw, the apparent density and compressive strength of the cole straw concrete both decrease. However, when the straw length is longer than 2.0cm, the decrease of compressive strength of the concrete has slowed down, and the concrete at the ultimate bearing state shows good plasticity.
    玄武巖纖維對機場道面混凝土抗凍性能影響研究
    玄武巖纖維對機場道面混凝土抗凍性能影響研究
    • 謝永亮1,戰仕利1,王 瑞1,張建軍2,梁 峰3
    2012年第12期
    摘要
    引用本文
    摘 要:通過設計對比試驗,從相對動彈模量和質量變化兩個方面研究了普通混凝土、玄武巖纖維混凝土及玄武巖纖維-引氣混凝土的抗凍性能,并分析了纖維增強抗凍機理。結果表明,玄武巖纖維的摻入能有效提高機場道面混凝土的抗凍性能,相對耐久性指數較引氣混凝土提高18.6%。 Abstract: Through the design of comparative test, the frost resistance of ordinary concrete, basalt fiber reinforced concrete (BFRC) and BFRC-air-entraining concrete is studied from two aspects of the relative elastic modulus and quality changes. The mechanism of fiber reinforcing frost resisting is analyzed. The results show that the basalt fiber can effectively improve the frost resistance of airport pavement concrete, and the relative durability index is increased by 18.6% than the ones of air-entrained concrete.
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