第三期_2013_《混凝土與水泥制品》雜志社

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第三期

水泥基泡沫-引發型多孔吸聲材料的研制與性能

周棟梁1，潘志華2，毛永琳1

２０13年第3期

摘要

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摘要：以泡沫混凝土的成型工藝為基礎，輔之以分散性良好的增強劑聚丙烯纖維，并摻加一定的輔助材料，配制出了一種新型水泥基泡沫-引發型多孔吸聲材料。該材料吸聲性能優越、成本低、對環境無污染。 Abstract: Based on the forming technics of foam concrete, adding the polypropylene fiber as strengthening agent and any other supplementary substances, a new kind of cement-based foam initiated porous sound absorption material is prepared. This material has the characteristics of good sound absorption, low cost of preparation and non-pollution to the environment.

利用廢陶瓷再生砂對特細砂的改性研究

劉鳳利1，劉俊華2，張承志1

２０13年第3期

摘要

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摘要：以廢棄陶瓷破碎為顆粒較粗的細骨料，即陶瓷再生粗砂，利用其與本地特細砂摻配使用以達到對特細砂改性的目的。針對兩種砂的不同特點，通過計算確定了陶瓷再生粗砂的合理摻量范圍和最佳摻量。 Abstract: Waste ceramics are crushed as recycled ceramic coarse sand. And it was mixed with Kaifeng ultra fine sand to modify the ultra fine sand. According to the different features of these two sands, the suitable range of recycled ceramic coarse sand replacing Kaifeng ultra fine sand and its optimal mixing ratio is determined by calculation.

超高層泵送混凝土的施工及裂縫的防治

王曉麗，姚傳勤，喬振偉

２０13年第3期

摘要

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摘要：根據工程實際，介紹了高性能混凝土配合比的選擇、泵送施工及混凝土的養護及裂縫防治措施，總結了超高層建筑泵送混凝土施工可以借鑒的實用經驗。 Abstract: According to the engineering practice, high performance concrete mix proportion selection, pumping construction and concrete conservation and crack prevention measures are introduced, and the learning practical experiences of the high-rise building pump concrete construction are summed up.

機場道面施工對引氣混凝土氣泡特征參數的影響

董軍1，翁興中2，顏祥程2

２０13年第3期

摘要

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摘要：為研究機場道面施工工藝和引氣劑品種對混凝土氣泡特征參數的影響規律，采用4種國內常用的引氣劑配置了含氣量為6%的機場水泥混凝土。試驗結果表明，經排式振搗機振搗后，混凝土的含氣量大幅度降低，氣泡總數和小孔徑氣泡個數顯著增加；摻不同品種引氣劑的混凝土經機場道面施工后，其氣泡特征參數有較大的差異；優質引氣劑經施工后在混凝土中形成大量小孔徑氣泡，氣泡間距系數明顯降低。 Abstract: In order to study the effect of airport pavement concrete construction and air entraining agent on air void characteristic parameters, four types of air entraining agent which are frequently used in China are adopted, and the airport cement concrete with air content of 6% is tested. The results show that air content in concrete decreases greatly while the total air number and the tiny air void number increase remarkably after HPZ vibration. Concrete with different air entraining agent lead to quite different air void characteristic parameters after airport concrete construction. Air void spacing factor decreases greatly after HPZ vibration and lots of tiny air voids are entrained in concrete with good quality air entraining agent.

基于ANSYS的PC構件自動化養護堆垛機的設計

韓彥軍，趙承芳

２０13年第3期

摘要

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摘要：結合實際生產需要，研究了預制混凝土構件自動化生產線中的自動化養護堆垛機，并通過ANSYS軟件分析了立體養護設備的承載結構。分析結果表明，采用ANSYS軟件進行有限元分析計算，較好地優化了堆垛機的結構，使其滿足了設計要求。 Abstract: Combined with the actual production needs, a stacking machine of curing equipment of prefabricated concrete (PC) component automated production line is designed, and stereo curing equipment bearing structure is analyzed through ANSYS software. The analyzed results show that the structure of stacking machine of the curing equipment can be better improved, and can satisfy the design requirements by the ANSYS software for analyzing PC component finite element.

基于CAD/CAE技術的鋼筋混凝土排水管模具設計

黃曉峰,葛友華，張廣冬

２０13年第3期

摘要

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摘要：采用CAD/CAE技術，以三維參數化建模軟件Pro/E作為設計平臺，進行鋼筋混凝土排水管模具關鍵零部件的設計與建模，并裝配得到整體虛擬模型。利用工程分析軟件ANSYS對開合模裝置的結構進行分析，以提前發現設計中存在的缺陷，及時對結構方案進行優化。 Abstract：By using three-dimensional parametric modeling software Pro/E of CAD/CAE technology as a design platform, the key parts of the mould for reinforced concrete sewer pipes are designed and modeled, and the parts are assembled to get a whole virtual model. Then, the structure of movable die device is analyzed using the engineering analysis software ANSYS, so as to find out the defects of mould design ahead of making products, and the structure scheme can be optimized in time.

當前我國工業化住宅的建設情況與策略研究

朱建華1，於林峰1，朱永明2

２０13年第3期

摘要

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摘要：對當前我國工業化住宅建設中常用的框架結構體系、剪力墻結構體系和PCF結構體系的構造及其特點作了介紹，對工業化住宅中PC構件的生產方式也作了介紹。文章總結我國工業化住宅建設推進過程中遇到的建設成本較高、標準化程度不高、配套技術不全、專業設計能力不強等四個關鍵問題。在此基礎上，推進工業化住宅建設策略的思考。 Abstract: The structure and characteristics of common frame structure system, shearing wall system and PCF structure system in industrial residence construction in China are introduced in this paper, and the production mode of PC components in industrial residence is also explained. The four key problems are summed up such as higher construction costing, lower standard level, defective matching technology and weak professional design ability. Therefore, the thinking of industrial residence construction strategy is promoted.

耐水高強磷石膏實心磚的研制

李向濤，謝紅波

２０13年第3期

摘要

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摘要：以生石灰作為改性材料對未經煅燒處理的磷石膏進行改性除雜，陳化后，經成球、水泥包裹處理，再與膠凝材料、碎石等在添加適量水的情況下混合，采用振動加壓成型工藝、自然養護的方式生產出軟化系數達到0.84、抗壓強度達到21.5MPa以上的耐水高強磷石膏實心磚，其它性能指標符合GB/T 21144—2007《混凝土實心磚》標準中MU20等級要求，使得磷石膏實心磚的應用范圍更加廣泛，從而為解決磷石膏的綜合利用問題提供了一條新的途徑。 Abstract: The uncalcined phosphogypsum is modified and purified by quicklime, via the aging, balling and cement coating process. And then the material is mixed with an appropriate amount of water, the cementitious material, gravel, and so on. After using the vibration pressure molding process and the nature curing, the prepared high-strength phosphogypsum water-resistant solid bricks can reach the softening coefficient of 0.84 and compressive strength of 21.5 MPa. The other properties can meet the requirement of MU20 grade requirements product of the GB/T 21144-2007 , which make the phosphogypsum solid bricks have broader range of applications, and it may provide a new way to solve the comprehensive utilization of phosphogypsum.

淤泥陶粒及其加氣砌塊生產技術研究

劉紅梅1,2，楊恒亮1，房靈占1

２０13年第3期

摘要

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摘要：通過長江淤泥（南通段）的物理性能及化學成分分析，對淤泥燒制陶粒進行了探討。分析了陶粒及粉煤灰摻量對陶粒加氣砌塊性能的影響，并對陶粒加氣砌塊的抗壓強度及熱工性能進行測試。介紹了陶粒加氣砌塊的生產工藝，根據陶粒加氣砌塊的制備現狀，從原料、工藝、設備三方面提出了改進意見。 Abstract: Through the analysis of the chemical composition and physical properties of the silt of Yangtze River in Nantong, the requirements of the raw material which have been used to produce ceramsite have been discussed. The effects of ceramsite dosage and fly ash dosage on the performance of sediment ceramsite aerated concrete blocks have been analyzed. The compression strength and thermodynamic engineering performance of sediment ceramist aerated concrete blocks have been tested. The production technology of ceramsite and its aerated concrete blocks is introduced. According to the preparation status of ceramsite aerated concrete blocks, some suggestions have been put forward from the raw material, production technology and equipment.

加氣混凝土砌塊長期承重使用后性能的研究

楊艷娟，張茂亮，蔣銳，李國旺，徐元盛

２０13年第3期

摘要

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摘要：對在承重結構中長期使用后的加氣混凝土砌塊的密度、含水率、抗壓強度、砌體抗壓強度、導熱系數和傳熱系數進行了測試，并將其與新鮮加氣混凝土砌塊進行比較。研究表明，加氣混凝土砌塊作為承重結構長期使用后，各項性能仍然與新鮮砌塊基本一致，其物理性能和熱工性能并未因長期的承重使用而劣化。 Abstract: The density, water content, compressive strength, masonry compressive strength, thermal conductivity and heat transmission coefficient of the long-term used bearing aerated concrete blocks are researched, and they are compared with the fresh bearing aerated concrete blocks. The results show that the properties of the long-term used bearing aerated concrete blocks used as bearing structure are basically the same with the fresh aerated concrete blocks, the physical performance and thermal property of bearing aerated concrete blocks do not deteriorate after long-term used.

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