neat cement 中文意思是什麼

neat cement 解釋
凈水泥漿
  • neat : adj 1 干凈的 整潔的；勻整的 端正的。2 （文字）簡潔的 適當的；靈巧的 精巧的。3 〈俚語〉好的；美妙...
  • cement : n 1 水泥。2 膠泥；膠合劑，接合劑，膠；【醫學】（牙科等用的）黏固粉。3 【解剖學】（牙齒的）白堊質...
  1. The preparation of chain transfer, the mol percent of pea : aa : mma and the time of combind were systermic investigated. the performance of pc was refledted by the neat cement paste fluidity and fluidity losing. the results indicated : ( 1 ) the preparation of chain transfer was one of most factor of control the molecular weight of copolymer and influence the performance of pc

    通過測定減水劑的水泥凈漿流動度及流動度損失宏觀反映合成減水劑共聚體pc的性能，研究結果表明： （ 1 ）鏈轉移劑是控制共聚物分子量影響共聚體pc性能的主要因素之一，在選擇鏈轉移劑zy 、用量為8 aa時的作用效果最佳。
  2. The main content is : splitting tensile experiments were carried out about the standardized cube bonding specimens ( 150x 150x 150mm3 ) of the new - old concrete after high temperature. the temperature is divided into 9 groups from normal atmospheric temperature to 900, the cooling styles are natural cooling and spraying water cooling ; different interfacial treating methods : brushed with steel - wire brush, man - made chiseling ( not evenly ), man - made chiseling ( quite evenly ) ; different interfacial agents : no interfacial agent, neat cement paste, cement paste mixed with 10 % expanding agent

    主要內容有：本文對75個高溫作用后的標準立方體新老混凝土粘結試件進行了劈拉試驗，溫度從常溫到900c分9個溫度段，降溫方式分自然冷卻和噴水冷卻兩種。著重考察了溫度、降溫方式、界面粗糙度及界面劑對新老混凝土粘結劈拉強度的影響規律，闡述了高溫后粘結強度下降的機理。
  3. ( 2 ) interfacial agents this experiment adopts three types of interfacial agents : no interfacial agent, neat cement paste which has the same water - cement ratio with the new concrete, cement paste mixed with 10 % expanding agent which has the same ratio with the new concrete ( which is called cement paste mixed with expanding agent for short ). the thickness of the interfacial agent is 2 ~ 3mm

    （ 2 ）粘結劑本試驗採用三種粘結劑：無粘結劑、同新混凝土相同水灰比的水泥凈漿、摻10 u型膨脹劑的同新混凝土相同水灰比的水泥凈漿（以下簡稱水泥膨漿） 。界面劑的厚度一般為2 3mm 。
  4. It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates

    結果表明，與硅酸鹽水泥相比，由於礦物摻合料與水泥熟料在活性和水化機理上的差異，水化歷程有較大的改變：多組分體系誘導期、加速期和衰減期延長，水化反應速率明顯降低；低溫時，水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰；高溫時，反應速率加快，雙峰合併；進一步研究發現，摻合料的種類與摻量對水化歷程也有較大的影響；建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。
  5. Abstract : based on composite testing of naphthalene superplasticizer and different retarders as well as retarding water reducer, in which the overall amount of admixture is certain, this paper analyzes the influence of these multicomponent admixtures on flowability of neat cement 、 retarding action and development of strength of colloidal mortar. the result shows that compatibilities of different components are different, and composition effects are also different

    文摘:在總摻量一定的情況下，就萘磺酸鹽高效減水劑與不同緩凝組分、緩凝型減水劑等復合后對水泥凈漿流動度、緩凝作用、膠砂強度發展等性能的影響作用進行了試驗分析，結果表明各不同組份復合的相容性不同，復合效應也存在差別。
  6. ( 4 ) the neat cement paste fluidity of copolymer would augment and the cohesiveness of cement would increase along with augmentation of pea dosage, but if the dosage was too big, the dosage of aa would be reduced, so it would reduce the carboxylic content of copolymer, and performance of water reduce would weaken, the dosage of pea23 can not more than 25 %. ( 5 ) the effect of water reduce would increase if the copolymer time increase

    而與x40 ;比較，減水率、凝結時間、保坍性、抗壓強度比等綜合性能還有一定的差距，有待進一步的改進和研究。從合成pc23一6的工業性分析: pea23的酷化和pc23一6的共聚的放大試驗看，其混凝土試驗結果較為理想，且其合成工藝流程較為簡單，具備高分子的合成條件:而從經濟性分析， 30 % pc23一6水溶液的原料成本低於fdn ，其性能具有較大的優勢，具有廣闊的工業化的前景。
  7. The experiment includes three parts. in the first part, we tested the coherence of the cfrp tendons with concrete, epoxy resin and neat cement grout and got the cohesion strength correspondingly. base on these data, we pointed out the problem of the tendons and provided the solution method

    在這些試驗中我們首先對碳纖維塑料筋在混凝土、環氧樹脂和素水泥漿中的粘結性能進行了研究，分別測出了碳纖維塑料筋在這幾種介質中的粘結強度並對實驗數據進行了分析，指出了存在的問題和應該採取的解決辦法。
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