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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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    第五期

    碳酸化預處理鋼渣粉在混凝土中的研究與應用
    碳酸化預處理鋼渣粉在混凝土中的研究與應用
    • 王 瑾1,劉 健2,潘 紅1,吳昊澤1,徐東宇3
    2022年第5期
    摘要
    引用本文
    摘 ? 要:利用X射線衍射儀和SEM掃描電子顯微鏡觀察了碳酸化預處理前后鋼渣粉的礦物組成和微觀形貌,研究了碳酸化鋼渣粉等質量(5%、15%、25%)替代水泥和等質量替代礦渣粉(碳酸化鋼渣粉用量占膠凝材料總量的10%、20%)對混凝土工作性和力學性能的影響。結果表明:經過碳酸化預處理后,鋼渣粉中的MgO和f-CaO含量分別降低了72.86%和88.86%,并伴有尺寸約為1 μm的顆粒狀晶體產生;隨著碳酸化鋼渣粉替代水泥比例的增加,試件的抗壓強度先增大后減小,坍落度和凝結時間均逐漸增大;當水泥用量為膠凝材料總量的50%時,隨著碳酸化鋼渣粉替代礦渣粉比例的增加,試件的抗壓強度降低,初始坍落度減小,凝結時間延長;當水泥用量為膠凝材料總量的70%時,隨著碳酸化鋼渣粉替代礦渣粉比例的增加,試件的抗壓強度先增大后減小,初始坍落度減小,凝結時間延長。碳酸化鋼渣粉已成功應用于道路及地坪工程用混凝土的配合比設計中。 Abstract: The mineral composition and microstructure of steel slag powder before and after carbonation pretreatment were observed by X-ray diffractometer and SEM scanning electron microscope, and the effects of carbonated steel slag powder instead of cement(5%, 15%, 25%) and instead of slag powder(the amount of carbonated steel slag powder accounted for 10% and 20% of the cementitious material) on the workability and mechanical properties of concrete were studied. The results show that after carbonation pretreatment, the content of MgO and f-CaO in steel slag powder are reduced by 72.86% and 88.86% respectively, and granular crystals with a size of about 1 μm are produced. With the increase of the ratio of carbonated steel slag powder instead of cement, the compressive strength of the specimen first increases and then decreases, and the slump and setting time gradually increase. When the cement dosage is 50% of the total cementitious material, with the increase of the ratio of carbonated steel slag powder instead of slag powder, the compressive strength of the specimen decreases, the initial slump decreases, and the setting time increases. When the cement dosage is 70% of the total cementitious material, with the increase of the ratio of carbonated steel slag powder instead of slag powder, the compressive strength of the specimen first increases and then decreases, the initial slump decreases, and the setting time increases. Carbonated steel slag powder has been successfully used in the mix proportion design of concrete for road and floor engineering.
    王瑾,劉健,潘紅,等.碳酸化預處理鋼渣粉在混凝土中的研究與應用[J].混凝土與水泥制品,2022(5):90-94. WANG J,LIU J,PAN H,et al.Research and Application of Carbonated Pretreatment Steel Slag Powder in Concrete[J].China Concrete and Cement Products,2022(5):90-94.
    凍融和干濕循環對廢玻璃混凝土耐久性能的影響研究
    凍融和干濕循環對廢玻璃混凝土耐久性能的影響研究
    • 張 楚a,王鳳池b,馬一方a
    2022年第5期
    摘要
    引用本文
    摘 ? 要:研究了凍融循環、干濕循環、凍融循環+干濕循環、凍融-干濕耦合循環對不同替代率廢玻璃骨料混凝土耐久性能的影響。結果表明:與未凍融、未干濕試件相比,經歷凍融循環、凍融循環+干濕循環、凍融-干濕耦合循環試件的抗壓強度降低、質量損失率增大,而經歷干濕循環試件的抗壓強度提高、質量損失率減??;不同損傷機制對廢玻璃混凝土耐久性能的影響程度由小到大順序為干濕循環<凍融循環+干濕循環<凍融循環<凍融-干濕耦合循環。 Abstract: The effects of freeze-thaw cycle, dry-wet cycle, freeze-thaw cycle + dry-wet cycle and freeze-thaw and dry-wet coupling cycle on the durability of concrete with different waste glass aggregate replacement rates were studied. The results show that compared with the no freeze-thaw and no dry-wet specimen, the compressive strength of the specimen subjected to freeze-thaw cycle, freeze-thaw cycle + dry-wet cycle, and freeze-thaw and dry-wet coupling cycle decreases and the mass loss rate increases, while the compressive strength of the specimen subjected to dry-wet cycle increases and the mass loss rate decreases. The degree of the influence of different damage mechanisms on the durability of waste glass concrete is in the order of dry-wet cycle < freeze-thaw cycle + dry-wet cycle < freeze-thaw cycle < freeze-thaw and dry-wet coupling cycle.
    張楚,王鳳池,馬一方.凍融和干濕循環對廢玻璃混凝土耐久性能的影響研究[J].混凝土與水泥制品,2022(5):95-99,104. ZHANG C,WANG F C,MA Y F.Study on the Influence of Freeze-thaw and Dry-wet Cycle on the Durability of Waste Glass Concrete[J].China Concrete and Cement Products,2022(5):95-99,104.
    電弧爐粉塵在水泥混凝土領域的研究與應用進展
    電弧爐粉塵在水泥混凝土領域的研究與應用進展
    • 岳漢威,王 清
    2022年第5期
    摘要
    引用本文
    摘 ? 要:電弧爐粉塵(EAFD)是電弧爐煉鋼過程中產生的固體廢物,采用水泥對EAFD進行吸收和消耗是理想的處理辦法之一。介紹了EAFD的形成過程和化學組成,分析了EAFD在水泥混凝土中的作用機理,綜述了EAFD在水泥混凝土領域的研究與應用進展,提出了目前研究中存在的問題,展望了水泥混凝土用EAFD未來的研究方向。 Abstract: Electric arc furnace dust (EAFD) is a solid waste generated in the electric arc furnace steelmaking process. Absorption and consumption of EAFD by cement is one of the alternative treatment methods. The formation process and chemical composition of EAFD are introduced. The mechanism of action of EAFD in cement concrete is analyzed. The research and application progress of EAFD in the field of cement concrete are reviewed. The problems existing in the current research are put forward. The future research direction of EAFD for cement concrete is prospected.
    岳漢威,王清.電弧爐粉塵在水泥混凝土領域的研究與應用進展[J].混凝土與水泥制品,2022(5):100-104. YUE H W,WANG Q.Research and Application Progress of Electric Arc Furnace Dust in the Field of Cement Concrete[J].China Concrete and Cement Products,2022(5):100-104.
    JC/T 2608—2021《混凝土水化溫升抑制劑》標準解讀
    JC/T 2608—2021《混凝土水化溫升抑制劑》標準解讀
    • 王文彬1,王 瑞1,王育江1,2,田 倩1
    2022年第5期
    摘要
    引用本文
    摘 ? 要:JC/T 2608—2021《混凝土水化溫升抑制劑》已于2021年7月1日開始實施,為便于使用方更準確地理解標準條款的具體含義,正確貫徹實施標準的具體要求和規定,介紹了JC/T 2608—2021標準的編制背景、編制目的和意義,并對其主要條款進行了解讀。 Abstract: The standard JC/T 2608—2021 Concrete Temperature Rise Inhibitor was officially issued on July 1st, 2021. In order to help users accurately understand the specific meaning of the standard terms and correctly implement this standard specification, the background, purpose, and meanings of the standard are introduced, and the main contents of the standard are interpreted in detail.
    王文彬,王瑞,王育江,等.JC/T 2608—2021《混凝土水化溫升抑制劑》標準解讀[J].混凝土與水泥制品,2022(5):86-89. WANG W B,WANG R,WANG Y J,et al.Standard Interpretation of JC/T 2608—2021 Concrete Temperature Rise Inhibitor[J].China Concrete and Cement Products,2022(5):86-89.
    高強硅酸鹽陶?;炷恋闹苽浼靶阅苎芯? />
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                          <a href="/product/3836.html" target="_parent" class="title"><i class="iconfont12"></i>高強硅酸鹽陶?;炷恋闹苽浼靶阅苎芯?/a>
                        
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                                      <span class="attrValue"><i class="iconfont2"></i> 朱   然1,2,王圣怡1,2,占羿箭1,2</span>
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                                      <span class="attrValue"> 2022年第5期</span>
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                            <span class="newMs">摘 ? 要:對陶粒、陶砂進行預濕處理,并將其用于配制高強硅酸鹽陶?;炷?,研究了水膠比、漂珠摻量、陶砂取代率對高強硅酸鹽陶?;炷列阅艿挠绊?。結果表明:預吸水陶粒、陶砂具備改善界面性能、內養護等多重作用,可有效提高輕骨料混凝土的強度;水膠比是決定輕骨料混凝土強度的關鍵因素,隨著水膠比的降低,輕骨料混凝土的強度增長明顯;減重材料如漂珠應謹慎使用,使用時應設置合理的應用區間,避免輕骨料混凝土中的水分含量出現較大波動。

Abstract: The ceramsite and ceramic sand were pre-wetted and used to prepare high-strength silicate ceramsite concrete. The effects of water-binder ratio, fly ash cenosphere content and ceramic sand replacement rate on the properties of high-strength silicate ceramsite concrete were studied. The results show that pre-absorbent ceramsite and ceramic sand have multiple functions such as improving the interface performance and internal curing, which can effectively increase the strength of lightweight aggregate concrete. The water-binder ratio is the key factor in determining the strength of lightweight aggregate concrete. As the water-binder ratio decreases, the strength of lightweight aggregate concrete increases significantly. Weight-reducing materials such as fly ash cenosphere should be used with caution, and a reasonable application interval should be set to avoid large fluctuations in the moisture content of lightweight aggregate concrete.
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                                      <span class="attrValue3"> 朱然,王圣怡,占羿箭.高強硅酸鹽陶?;炷恋闹苽浼靶阅苎芯縖J].混凝土與水泥制品,2022(5):67-71.
ZHU R,WANG S Y,ZHAN Y J.Study on Preparation and Properties of High-strength Silicate Ceramsite Concrete[J].China Concrete and Cement Products,2022(5):67-71.</span>
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    納米C-S-H對固硫灰蒸壓加氣混凝土水化產物形成的影響
    • 柏秀奎1,林俊豪2,曹德光1,韋炫辰1,歐天安2,潘榮偉2,李乘光3
    2022年第5期
    摘要
    引用本文
    摘 ? 要:通過強度、干密度測試以及XRD、FTIR、SEM分析,研究了納米C-S-H對固硫灰蒸壓加氣混凝土性能及水化產物的影響。結果表明:隨著納米C-S-H摻量的增加,蒸壓加氣混凝土的干密度和抗壓強度均呈先增后降的趨勢,且當納米C-S-H摻量為3%時,蒸壓加氣混凝土的抗壓強度最大,較空白組提高了13.2%;在蒸壓養護條件下,納米C-S-H的摻入一方面促進了體系中的Ca(OH)2與固硫灰中的活性SiO2和Al2O3反應,形成了更多的托貝莫來石和C-S-H凝膠,另一方面加速了托貝莫來石和C-S-H凝膠的生長速度,形成了尺寸更大的反應產物;納米C-S-H的摻入降低了蒸壓加氣混凝土中的孔洞率,提高了蒸壓加氣混凝土的密實度和強度;固硫灰中的三種主要物相與Ca(OH)2的蒸壓反應活性大小為薄片疊層狀的黏土礦物熱分解產物最高,帶棱角粒狀的石英顆粒次之,球狀的鋁硅酸鈣物相最低。 Abstract: The effects of nano-C-S-H on properties and hydration products of autoclaved aerated concrete with circulating fluidized bed fly ash were studied by strength, dry density tests and XRD, FTIR and SEM analysis. The results show that the dry density and compressive strength of autoclaved aerated concrete increase first and then decrease with the increase of nano-C-S-H content, and the compressive strength of autoclaved aerated concrete reaches the maximum when the nano-C-S-H content is 3%, which is 13.2% higher than that of blank group. Under the autoclastic curing condition, the addition of nano-C-S-H promotes the reaction of Ca(OH)2 in the system with active SiO2 and Al2O3 in the circulating fluidized bed fly ash, forming more tobermorite and C-S-H gel, and accelerates the growth rate of tobermorite and C-S-H gel, forming reaction products with larger size. The addition of nano-C-S-H reduces the porosity of autoclaved aerated concrete, and improves the density and compressive strength of autoclaved aerated concrete. The autoclaved reaction activity of the three main phases in the circulating fluidized bed fly ash with Ca(OH)2 is that the laminated products of clay are the highest, followed by the angular granular quartz particles, and the spherical phase of calcium aluminosilicate is the lowest.
    柏秀奎,林俊豪,曹德光,等.納米C-S-H對固硫灰蒸壓加氣混凝土水化產物形成的影響[J].混凝土與水泥制品,2022(5):72-76. BAI X K,LIN J H,CAO D G,et al.Effect of Nano-C-S-H on the Formation of Hydration Products of Autoclaved Aerated Concrete with Circulating Fluidized Bed Fly Ash[J].China Concrete and Cement Products,2022(5):72-76.
    帶高位轉換層高層建筑結構轉換梁的受力分析
    帶高位轉換層高層建筑結構轉換梁的受力分析
    • 王再舉,張 婭
    2022年第5期
    摘要
    引用本文
    摘 ? 要:利用PKPM軟件中的SATWE模塊和ANSYS軟件對駐馬店市驛城區某住宅小區4#樓B座高位轉換結構中兩根具有代表性的轉換梁進行了受力計算,獲得了高位轉換結構中轉換梁的彎矩值、剪力值、軸力值、撓度值大小及其變化規律,并利用兩種軟件計算出了結構周期。結果表明:利用ANSYS軟件計算得到的框支梁彎矩值、剪力值、軸力值均小于利用SATWE模塊計算得到的結果,且二者的變化規律相同,部分SATWE計算結果比ANSYS計算結果大近3倍,證明了SATWE計算結果的安全性;而利用SATWE模塊計算得到的框支梁撓度值小于利用ANSYS軟件計算得到的結果,部分ANSYS計算結果比SATWE計算結果大近2.5倍;兩種軟件計算出的結構周期變化規律基本吻合;研究結果對相關結構設計具有指導意義,可為實際工程提供參考。 Abstract: The SATWE module in PKPM software and ANSYS software were used to calculate the force of two representative transfer beams in the high-level transfer structure of Block B of Building 4# in Yicheng District of Zhumadian City, and the bending moment value, shear force value, axial force value and deflection value of transfer beams in high-level transfer structure and their changing rules were obtained. The structural cycles were calculated by the two softwares. The results show that the bending moment value, shear force value and axial force value of the frame-supported beam calculated by ANSYS software are less than those calculated by SATWE module, and the changing rules of the two are the same, and some SATWE calculation results are nearly 3 times larger than ANSYS calculation results, which proves the safety of SATWE calculation results. The deflection value of the frame-supported beam calculated by SATWE module is less than that calculated by ANSYS software, and some ANSYS calculation results are nearly 2.5 times larger than SATWE calculation results. The structural cycle variation laws calculated by the two softwares are basically consistent. The research results have guiding significance for related structural design and can provide reference for practical engineering.
    王再舉,張婭.帶高位轉換層高層建筑結構轉換梁的受力分析[J].混凝土與水泥制品,2022(5):77-80. WANG Z J,ZHANG Y.Stress Analysis of Transfer Beam of High-rise Building Structure with High Transfer Floors[J].China Concrete and Cement Products,2022(5):77-80.
    堿激發再生黏土磚粉泡沫混凝土性能研究
    堿激發再生黏土磚粉泡沫混凝土性能研究
    • 余昭陽1,劉潤清1,葛 星2,崔云鵬1
    2022年第5期
    摘要
    引用本文
    摘 ? 要:研究了在堿激發方式下再生黏土磚粉的活性激發效果和機理,探究了活性激發后的再生黏土磚粉用于制備泡沫混凝土的可行性。結果表明:復合堿激發劑可以提高再生黏土磚粉-水泥膠凝材料的28 d抗壓強度和活性指數,當復合堿激發劑摻量為3%時,試件的28 d抗壓強度和活性指數分別為22.42 MPa和73.3%,激發效果最好;當采用復合堿激發劑時,膠凝材料體系的水化放熱速率和水化放熱總量低,水化反應時間長,試件的后期強度高;當復合堿激發劑摻量為3%、再生黏土磚粉摻量為40%、水膠比為0.50時,再生黏土磚粉泡沫混凝土的性能滿足JG/T 266—2011《泡沫混凝土》的要求。 Abstract: The activation effect and mechanism of recycled clay brick powder under alkali excitation were studied, and the feasibility of using recycled clay brick powder to prepare foamed concrete was explored. The results show that the composite alkali activator can improve the 28 d compressive strength and activity coefficient of recycled clay brick powder- cement cementitious material, and when the content of composite alkali activator is 3%, the 28 d compressive strength and activity coefficient of the specimen are 22.42 MPa and 73.3% respectively, the excitation effect is the best. When the composite alkali activator is used, the hydration heat release rate and total hydration heat release of the cementitious material system are low, the hydration reaction time is long, and the later strength of the specimen is high. When the content of composite alkali activator is 3%, the amount of recycled clay brick powder is 40% and the water-binder ratio is 0.50, the performance of recycled clay brick powder foamed concrete meets the requirements of JG/T 266—2011 Foamed Concrete.
    余昭陽,劉潤清,葛星,等.堿激發再生黏土磚粉泡沫混凝土性能研究[J].混凝土與水泥制品,2022(5):81-85,89. YU Z Y,LIU R Q,GE X,et al.Study on Properties of Alkali Activated Recycled Clay Brick Powder Foamed Concrete[J].China Concrete and Cement Products,2022(5):81-85,89.
    高延性劍麻纖維水泥基路面材料配合比研究
    高延性劍麻纖維水泥基路面材料配合比研究
    • 陳偉宏1,2,賈云飛1,姚仲泳3,顏學淵1
    2022年第5期
    摘要
    引用本文
    摘 ? 要:通過正交試驗研究了水膠比、砂膠比、粉煤灰摻量和劍麻纖維摻量對水泥基路面材料抗壓性能和彎拉性能的影響。結果表明,高延性劍麻纖維水泥基路面材料的最佳配合比為:水膠比0.30、砂膠比0.4、粉煤灰摻量30%、劍麻纖維摻量0.5%,此時,試件的彎拉強度滿足JTG D40—2011《公路水泥混凝土路面設計規范》的要求,且抗壓強度較高,為66.62 MPa。 Abstract: The effects of water-binder ratio, sand-binder ratio, fly ash content and sisal fiber content on the compressive properties and flexural tensile properties of cement-based pavement materials were studied by orthogonal experiments. The results show that the optimal mix proportion of high ductility sisal fiber cement-based pavement material is: water-binder ratio of 0.30, sand binder ratio of 0.4, fly ash content of 30% and sisal fiber content of 0.5%, and the flexural tensile strength of the specimen meets the requirements of JTG D40—2011 Specifications for Design of Highway Cement ?Concrete Pavement, and the compressive strength is relatively high, which is 66.62 MPa.
    陳偉宏,賈云飛,姚仲泳,等.高延性劍麻纖維水泥基路面材料配合比研究[J].混凝土與水泥制品,2022(5):50-54,60. CHEN W H,JIA Y F,YAO Z Y,et al.Study on Mix Proportion of High Ductility Sisal Fiber Cement-based Pavement Materials[J].China Concrete and Cement Products,2022(5):50-54,60.
    二維纖維增強材料對聚合物水泥砂漿拉伸性能的影響
    二維纖維增強材料對聚合物水泥砂漿拉伸性能的影響
    • 郭潤開1,龍天艷2,王 娟2,徐建設1
    2022年第5期
    摘要
    引用本文
    摘 ? 要:為了改善水泥基材料的抗裂性能,滿足建筑在加固、修復過程中對修補材料高韌性的需求,將耐堿玻璃纖維網、玻璃纖維方格布、玻璃纖維氈3種二維纖維分別摻入到聚合物水泥砂漿中,研究了不同二維纖維增強材料對聚合物水泥砂漿拉伸性能的影響,通過應力-應變曲線和拉伸破壞形態揭示了二維纖維增強材料對聚合物水泥砂漿的作用機理,通過對摻二維纖維增強材料聚合物水泥砂漿進行浸水和堿溶液處理,評價了其耐水、耐堿性能。結果表明:3種二維纖維增強材料均能提高聚合物水泥砂漿的拉伸強度與斷裂伸長率,其中,玻璃纖維方格布對提升聚合物水泥砂漿的拉伸強度最有利;浸水和堿溶液處理均會影響摻二維纖維增強材料聚合物水泥砂漿的拉伸性能,其中,堿溶液處理更不利。 Abstract: In order to improve the crack resistance of cement-based materials and meet the requirements for high toughness of repair materials in the process of building reinforcement and repair, three two-dimensional fibers of alkali resistant glass fiber mesh, glass fiber checkered cloth, glass fiber felt were added into polymer cement mortar. The effect of different two-dimensional fiber reinforced materials on the tensile properties of polymer cement mortar was studied. The action mechanism of two-dimensional fiber reinforced materials on polymer cement mortar was revealed by stress-strain curve and tensile failure mode. The water resistance and alkali resistance of polymer cement mortar mixed with two-dimensional fiber reinforced materials were evaluated by soaking in water and alkali solution. The results show that the three kinds of two-dimensional fiber reinforced materials can increase the tensile strength and elongation at break of the polymer cement mortar, among which the glass fiber checkered cloth is most beneficial to the improvement of the tensile strength of polymer cement mortar. Both water immersion and alkali solution treatment will affect the tensile properties of polymer cement mortar mixed with two-dimensional fiber reinforced materials, among which alkali solution treatment is more unfavorable.
    郭潤開,龍天艷,王娟,等.二維纖維增強材料對聚合物水泥砂漿拉伸性能的影響[J].混凝土與水泥制品,2022(5):55-60. GUO R K,LONG T Y,WANG J,et al.Influence of Two-dimensional Fiber Reinforced Materials on Tensile Properties of Polymer Cement Mortar[J].China Concrete and Cement Products,2022(5):55-60.
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