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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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    第二期

    粗細鋼渣替代天然骨料對混凝土力學性能的影響
    粗細鋼渣替代天然骨料對混凝土力學性能的影響
    • 韓艷麗,馮 勇,肖 磊
    2015年第2期
    摘要
    引用本文
    摘 要:在原有普通混凝土配合比基礎上,采用鋼渣粗、細骨料對混凝土中的天然骨料進行部分替代,進行鋼渣混凝土配合比試驗,分別用普通硅酸鹽水泥和硫鋁酸鹽水泥作為膠凝材料進行配合比試驗,比較了兩種水泥鋼渣混凝土的抗折、抗壓強度及后期強度發展變化,并進行了不同水泥品種下,不同粒徑鋼渣混凝土的基本力學性能研究。 Abstract: On the basis of the existing ordinary concrete mix, the tests of slag concrete mix are carried out by using coarse and fine aggregate of steel slag for concrete to partially replace natural aggregate and using ordinary portland cement and sulphoaluminate cement as cementitious materials. Flexural strength, compressive strength and late strength development changes of the two kinds of slag concrete are compared, and the basic mechanical properties of the slag concrete with different size are studied.
    利用冶煉工業廢棄物鎳渣研制混凝土儲熱材料
    利用冶煉工業廢棄物鎳渣研制混凝土儲熱材料
    • 孟 淵,田斌守,邵繼新,馮啟彪
    2015年第2期
    摘要
    引用本文
    摘 要:利用冶煉廢棄物鎳渣研制儲熱混凝土。研究表明,利用鎳渣高密度的特性可以配置表觀密度大、熱容值高以及傳熱性能良好的混凝土儲熱材料。 Abstract:The heat storage concrete is developed by using nickel slag which is a kind of smelting waste slag. The studies show that the high density of the slag makes it possible to prepare heat storage concrete with high apparent density, high heat capacity and good heat transfer performance.
    大摻量鋼礦渣復合粉混凝土基本性能試驗研究
    大摻量鋼礦渣復合粉混凝土基本性能試驗研究
    • 李 陽
    2015年第2期
    摘要
    引用本文
    摘 要:對普通混凝土、大摻量礦渣粉混凝土和大摻量鋼礦渣復合粉混凝土分別進行了基本性能試驗研究,包括塑性混凝土性能、硬化混凝土力學性能和耐久性。試驗結果表明,大摻量鋼礦渣復合粉混凝土具有早期強度高、塑性收縮和干縮低、耐久性好等特點。 Abstract: The basic properties of ordinary concrete, concrete mixed with a large amount of slag power and concrete mixed with a large amount of steel slag composite powder are studied including the plastic properties of concrete, the mechanical properties and durability of hardened concrete. The test results show that the concrete mixed with a large amount of steel slag composite powder has good technical characteristics, such as high early strength, low plastic shrinkage and dry shrinkage, good durability.
    鈦礦渣-固硫灰復合礦物摻合料性能研究
    鈦礦渣-固硫灰復合礦物摻合料性能研究
    • 范 志 , 盧忠遠, 李 軍, 李曉英
    2015年第2期
    摘要
    引用本文
    摘 要:基于固硫灰的活性激發效應和鈦礦渣的減水效應,提出通過復合化技術制備鈦礦渣-固硫灰復合礦物摻合料,研究了其對砂漿和混凝土的工作性能和力學性能影響,并利用DTA、XRD和SEM等手段探討了作用機理。結果表明,鈦礦渣-固硫灰復合礦物摻合料顯示出了活性相互激發和減水的疊加效應。與鈦礦渣相比,鈦礦渣-固硫灰復合礦物摻合料活性提高;與固硫灰相比,復合礦物摻合料明顯改善了砂漿和混凝土的工作性。利用鈦礦渣與固硫灰質量比為2:1的復合礦物摻合料所制備的混凝土工作性能及抗壓強度與S75礦粉相當。 Abstract:Titanium slag-Circulating fluidized bed combustion (CFBC) fly ash composite mineral admixtures were prepared through the activity excitation of CFBC fly ash and water-reducing of titanium slag. The influences of composite mineral admixtures on the mechanical properties and workability of mortar and concrete were studied, and the mechanism was discussed by DTA, XRD and SEM, etc. The experiment results show that the properties of titanium slag-CFBC fly ash composite mineral admixtures are improved due to the synergistic effect compared with titanium slag and CFBC fly ash used independently. It is oberserved that the workability and compressive strength of the concrete with composite mineral admixtures are similar to those of concrete with S75 slag powder when the mass ratio of titanium slag and CFBC fly ash is 2:1.
    大跨度薄腹板后張預應力工字梁施工技術研究
    大跨度薄腹板后張預應力工字梁施工技術研究
    • 王國軍,馬士玉
    2015年第2期
    摘要
    引用本文
    摘 要:通過對大跨度薄腹板的方案設計、原材料性能檢測、施工工藝研究、工程應用效果評價等內容的研究,對原有施工技術進行了系統改進;通過改善高強自密實混凝土性能、采用模塊拼裝式模板及復合式交互振搗這三項關鍵技術,有效減少了人工投入,節省了勞動力,減輕了環境污染,保證了工程質量。 Abstract: The project design of?a concrete bridge plate with large span and thin abdomen, the performance test of raw materials, the construction technology and engineering application effect evaluation are studied, and the construction technology for the original system is improved. By improving the three key technologies of high strength self-compacting concrete, the module with templates, complex interaction vibrating, it’s effective to save the labor, reduce the environmental pollution and ensure the quality of products.
    電梯曳引機底座鋼梁與RC剪力墻柱沖突時的施工方法
    電梯曳引機底座鋼梁與RC剪力墻柱沖突時的施工方法
    • 江懷雁
    摘要
    引用本文
    摘 要:某剪力墻結構高層住宅樓群因電梯選購滯后于該住宅樓的設計和施工,導致電梯曳引機底座支撐工字鋼及兩端槽鋼枕頭梁與電梯機房兩根鋼筋混凝土柱發生位置沖突,須鑿開這兩根柱子,以插入曳引機底座鋼梁。采用有限元法評估電梯安裝工況下鑿斷柱子后上部結構的承載力和正常使用工況下部分柱筋永久截斷后對機房承載力的影響,研究了相應的施工方案,最終通過鋼管臨時托換和膨脹細石混凝土填筑的方法,達到安全及施工便利的目的。 Abstract: Since the order of elevator lagged behind the design and construction of 8 shear wall structural high-rise domestic buildings, which caused a site conflict between the steel pedestal steel beams of the elevator traction machines and two existing RC columns, so the columns may need to be fully cut off. Then, the bearing capacity of components after the two RC columns were cut off was estimated and the adverse effects of cutting off part of rebars in the columns are studied. Finally, a construction schedule using the technology of temporary underpinned steel tubes and filling with expansive concrete was designed and carried out to achieve safe and convenient purpose.
    開展環境標志產品認證 推動混凝土行業綠色生產
    開展環境標志產品認證 推動混凝土行業綠色生產
    • 劉 晶,汪 瀾
    2015年第2期
    摘要
    引用本文
    摘 要:介紹了環境標志以及HJ/T 412-2007《環境標志產品技術要求 預拌混凝土》標準產生的背景、意義,分析了HJ/T 412-2007標準的各項基本要求和技術內容要求,探討了目前我國環境標志預拌混凝土產品認證存在的問題,并提出了相關意見和建議。 Abstract: The background and significance of environmental labelling and HJ/T 412-2007 technical requirement for environmental labelling products Ready-mixed concrete are introduced, and all kinds of basic demands and technology content requirements are also analyzed. Meanwhile, some problems existed in product certification are discussed and some opinions and suggestions are put forward. According to the HJ/T 412-2007 to guide the production, it will lead to the concrete industry to achieve green and sustainable development.
    無機保溫砂漿研究進展
    無機保溫砂漿研究進展
    • 李胡勇1,楊 艷1,2
    2015年第2期
    摘要
    引用本文
    摘 要:無機保溫砂漿作為一種新型外墻保溫材料,與傳統有機保溫材料相比具有防火阻燃性好、強度高、耐久性優良、不易空鼓開裂等優點,是保溫材料的發展新方向。本文簡述了無機保溫砂漿的保溫機理,介紹了無機保溫砂漿的特點和分類,分析探討了無機保溫砂漿存在的問題,展望了無機保溫砂漿的發展前景。 Abstract: Inorganic insulation mortar technology is a kind of effective energy saving measures in the construction. As a new type of exterior wall thermal insulation material, compared with organic thermal insulating material, inorganic insulation mortar which is the development trend of thermal insulating material has many advantages in fireproof and burning retarding, strength, durability and so on. The insulation mechanism, features and classification of inorganic insulation mortar are introduced, and some problems in inorganic insulation mortar and the development trend of the mortar are put forward.
    裝配式結構用高強套筒灌漿料性能試驗研究
    裝配式結構用高強套筒灌漿料性能試驗研究
    • 汪秀石,楊智良,吳照學
    2015年第2期
    摘要
    引用本文
    摘 要:研究了裝配式結構用高強套筒灌漿料的性能,通過試配并進行了流動度、強度和膨脹性試驗,優選出了優化配合比。同時基于優化配合比進行了水膠比、減水劑摻量和膨脹劑摻量對高強套筒灌漿料性能影響的研究。試驗結果表明,隨著水膠比(W/B)增加,流動度逐漸增大,但強度隨W/B增加呈現明顯降低趨勢;減水劑可有效改善流動度,而當摻量過多時對強度有一定的影響;膨脹率隨膨脹劑摻量增加呈現增長趨勢,但當摻量小于8.0%時,膨脹效果較差,摻量大于12.0%時,對流動度和強度產生不利影響。 Abstract: The properties of high-strong cementitious grout for prefabricated concrete structure are studied, and the optimum mix proportion is elected by the tests of fluidity, strength and expansibility. The roles of W/B and the content of superplasticizer or expanders in high-strong cementitious grout for coupler are researched respectively based on the optimum mix proportion. The test results show that the fluidity of the grout increases with the increasing of W/B, but its strength has significantly decreasing trend; the fluidity of the grout can be improved effectively by superplasticizer, but its strength will decrease if superplasticizer content is excessive; expansion rate of the grout increases with the increasing of expanders agent content, but the expansibility is poor when the content is less than 8.0%, and it has an adversely affect on the liquidity and strength of the grout when the content is greater than 12.0%.
    化學法制備泡沫混凝土影響因素試驗研究
    化學法制備泡沫混凝土影響因素試驗研究
    • 杭美艷,孔凡龍,張培育
    2015年第2期
    摘要
    引用本文
    摘 要:以普通硅酸鹽水泥為主要原料,采用雙氧水為發泡劑,在不同配合比條件下研究了摻合料、不同水膠比時料漿稠度、料漿初始反應溫度對泡沫混凝土氣孔直徑大小及氣泡穩定性的影響。試驗結果表明:雙摻粉煤灰與礦渣粉各取代19%的水泥、水膠比為0.41、料漿初始反應溫度為20~25°C時制得的泡沫混凝土氣孔直徑大小適中且氣泡穩定不塌模??紤]綜合影響因素,研究得到的泡沫混凝土性能穩定、配合比經濟,達到節能減排的目的。 Abstract: Using ordinary portland cement as the main raw material and hydrogen peroxide as the foaming agent, the effects of consistency and initial temperature of slurry on the pore diameter size and bubble stability of foam concrete are studied under the condition of different W/B and different admixture content. The results show that pore diameter size of foam concrete is moderate and bubbles are stable when substituted amount of fly ash and slag powder is respectively 19% of cement, W/B is 0.41 and the initial temperature of slurry is 20~25°C. Considering the combined factors, performance of the papered foam concrete is stable, mix proportion is economic, and so it achieves the goal of energy conservation and emission reduction.
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