2012_2012_《混凝土與水泥制品》雜志社

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2012

淺談預應力混凝土管樁施工監控要點

楊海榮1,2

2012年第6期

摘要

引用本文

摘??要：針對預應力混凝土管樁的特點，結合自身實踐經驗，提出了預應力混凝土管樁監理的工作依據及該類管樁在工程施工階段的監控項目、控制要點、注意事項等內容。Abstract:Accordingtothecharacteristicsofprestressedconcretepilesandcombiningwiththewriterownpracticeexperience,supervisionworkbasis,supervisionitems,supervisionpoints,pointsforattentionandsoonduringtheengineeringconstructionoftheprestressedconcretepilesareputforward.

干法環保人工砂技術

王有負

２０12年第9期

摘要

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摘要：介紹了一種干法環保人工砂生產技術，該技術采用精品骨料生產加工系統，將低質量的石子加工為優質商品混凝土制備用原材料，不僅實現了原材料的可持續發展，而且經濟環保。 Abstract: A kind of dry environmental protection artificial sand technology is introduced. The fine aggregate production and processing system is the key of the technology. And using the system, low quality stones are made into high quality raw materials of ready-mixed concrete, which not only can realize the sustainable development of the raw materials, but also is economic and environmental protective.

煤矸石及其在建筑材料中的應用研究

劉寧，劉開平，榮麗娟，趙靜

２０12年第9期

摘要

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摘要：通過描述煤矸石物化性質以及在墻體材料、水泥凈漿、水泥砂漿、水泥混凝土以及筑路和填充材料中的應用，說明了煤矸石的一些性質可以改善建筑材料的多種性能，并對在應用過程中需要注意的煤矸石種類、粒徑、用量、級配等問題進行了描述。 Abstract: Through describing the coal gangue physical and chemical properties as well as its application in wall materials, cement paste, cement mortar, cement concrete and filling materials with good effects, it’s proved that some properties of the coal gangue could improve a number of performances of the building materials. Besides, in order to promote the development of the coal gangue, some attention problems such as the type, particle size, dosage, gradation of the coal gangue are described during the application process.

纖維水泥板和硅酸鈣板企業生產線環保排放探討

王平，馮明

２０12年第9期

摘要

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摘要：根據纖維水泥板和硅酸鈣板生產線排放廢水特點，對纖維水泥板和硅酸鈣板生產企業廢水排放的綜合處理方案進行了探討，提出了廢水處理的方案，該方案可合理利用廢水，達到國家排放標準。 Abstract: According to the wastewater emission characteristics of the fiber cement plates and silicate calcium plates production lines, the complex measure schemes of the wastewater emission in the fiber cement plates and silicate calcium plates factories are discussed. The measure schemes of the wastewater emission is proposed, which can reasonably use the wastewater, and make it achieve the national emission standard.

某高層商辦樓基礎底板溫控監測及施工技術

厲見芬，李書進，周澤來

２０12年第9期

摘要

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摘要: 結合某高層商辦樓基礎底板混凝土的施工，針對水化熱過高易導致混凝土開裂的問題，從原材料配合比、保溫層驗算、全過程溫度控制、施工措施等方面闡述了厚大混凝土基礎底板的施工技術。利用混凝土澆筑后的現場溫度測量結果，對大體積混凝土實施了動態保溫養護。 Abstract: Combined with construction of a high-rise office building concrete foundation slab, in order to avoid the high hydration heat leading to concrete cracking, from the aspects such as raw material mix ratio, heat preservation layer calculation, temperature control and construction measures, the construction technology of mass concrete thick foundation slab is discussed. By the spot temperature measurement results, the dynamic temperature maintenance for mass concrete slab is carrying out.

C60鋼纖維泵送混凝土雙摻配合比設計及工程應用

黃勇

２０12年第9期

摘要

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摘要：結合甘肅地區首次應用高強鋼纖維泵送混凝土的實際工程，介紹了用粉煤灰、礦粉雙摻配制C60鋼纖維泵送混凝土的技術關鍵，并通過優化配合比，解決了該混凝土粘度與可泵性的矛盾。 Abstract: Comparing with the practical engineering of high strength pumping steel fiber reinforced concrete applied in Gansu area at first time, the technical key points of preparing C60 pumping steel fiber reinforced concrete with fly ash and slag powder are introduced. Through optimizing the mix proportion, the contradiction between the viscosity and pumping ability of concrete is solved.

淺談預拌混凝土裂縫的滲水及處理方法

焦建明1，袁玉新2

２０12年第9期

摘要

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摘要：通過實際工程案例，觀察了混凝土結構易出現滲漏現象的部位，分析了這些部位發生滲漏的原因，提出了滲漏部位的處理方法，并指出了施工中應注意的問題。 Abstract: According to the practical engineering cases, the parts of concrete structures which happen the leakage easily are observed. The reasons for the leakage are analyzed. The treatment method for the leakage parts is proposed, and the attention problems during the construction are put forward.

陶粒泡沫混凝土配合比試驗研究

鹿健良，孫晶晶

２０12年第9期

摘要

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摘要：研究了陶粒摻量、陶砂摻量、水泥用量對陶粒泡沫混凝土強度、表觀密度的影響。通過三水平三因素正交設計方法確定了各組分的最佳摻量。研究結果表明，配制陶粒泡沫混凝土時，陶粒摻量、水泥用量都有其最佳值；陶砂的摻入降低了該種混凝土的強度以及比強；從綜合成本和材料比強考慮，水泥用量不宜過多。 Abstract: The effects of ceramisite dosage, ceramic sand content and cement content on the strength and bulk density are studied. The optimum quantity of each composition is determined by three factors on three levels. The research results prove that when mixing ceramisite foamed concrete, both ceramisite dosage and cement content have their best quantity. The addition of ceramic sand reduces the strength and specific strength of concrete, and cement quantity is unfavorably overmuch from the points of both comprehensive costs and materials’ specific strength.

堿激發礦渣粉煤灰混凝土性能的研究及在排水管中的應用

劉遠祥，朱群芳

２０12年第9期

摘要

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摘要：通過改變激發劑摻量，分析研究了堿礦渣粉煤灰混凝土的凝結時間、抗壓強度、耐腐蝕等主要性能。在此基礎上，使用懸輥法制管工藝生產了耐腐蝕混凝土排水管，并對其性能進行了檢驗。檢驗結果表明，所制備的混凝土排水管的各項性能都符合要求，且具有良好的耐腐蝕性能。 Abstract：Through changing the dosage of activator, the main performances of alkali slag fly ash concrete such as the setting time, compressive strength, corrosion resistance etc. are analyzed and studied. Meanwhile, based on the study, anti-corrosion concrete drainage pipes are made by using suspension roller production process of pipes, and the performances of the pipes are tested. The text results indicate that all performances of the concrete drainage pipes can meet the requirements of related standards, and its anti-corrosion performance is better.

攀鋼高鈦型高爐渣生產墻體材料可行性研究

陳德玉，譚克鋒

２０12年第9期

摘要

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摘要：對攀鋼高鈦型高爐渣生產實心磚和混凝土空心砌塊的可行性進行了研究。研究結果表明，石灰、煅燒石膏、粉煤灰混合摻入時對高鈦型高爐渣的活性激發效果最好。微觀分析也證明此時高鈦型高爐渣積極地參與了反應。在此基礎上獲得了用于開發高鈦型高爐渣實心磚和混凝土空心砌塊所用膠結料的最優配合比，用該膠結料可以生產強度達MU10的實心磚和空心率為50%、強度達MU10以上的混凝土空心砌塊。 Abstract: The availability of activating the activity of titanium bearing slag (TBS) and using it to produce new wall materials are studied. The test results show that the gypsum has good activating effect to TBS, but when burned gypsum and fly ash incorporated together, the activating effect is better than the former. The microstructure analysis confirms that in this case, the TBS actively takes part in chemical reaction. The optimum mix proportion of the binder is obtained. Using this binder, the bricks and concrete hollow blocks with strength of MU10 can be successfully produced.

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