鈣系膨土 的英文怎麼說
中文拼音 [gàixìpéngtǔ]
鈣系膨土
英文
calcium bentonite-
In practical uses, the major performances of concrete are associated with the quantities, types and the service conditions of the expansion - admixture. the expansion admixtures of concrete available at present still have many shortcomings, such as the greater quantities required, the non - relevance between developments of concrete strength and durability and expanding speeds of expansion admixture, the evaluation of expanding effects, the def of aft etc. unfortunately, few achievements in these aspects have been obtained all over the world
在實際使用中，膨脹劑類型、摻量及其使用條件對混凝土的主要性能影響很大，現有的膨脹劑存在著實際摻量較大、混凝土強度及耐久性發展與膨脹劑的膨脹速率不協調、膨脹效能如何評價、鈣礬石aft相延遲性反應（ def ）等一系列問題，而目前國內外這方面的研究成果較少。The major performances of concrete and mortars, which are mixed with different quantities of expansion admixtures under the same mix proportions, are studied systematically and deeply in this work. sulphoaluminate mixed with a type of new expanding component by use of the composite methods are studied in the laboratory, and some achievements have been obtained. the service conditions, the characteristics and the shortcomings of expansion admixture in the concrete engineering are analyzed and summarized based on literatures, and the expanding mechanism of concrete is discussed
本文試圖從膨脹劑不同摻量研究其對混凝土和砂漿主要性能的影響，進行了一系列宏觀力學性能試驗研究；利用差熱分析（ dta ） 、掃描電子顯微鏡（ sem ）等分析手段對鈣礬石等水化產物的結晶和生成量、形貌特徵進行微觀分析；並採用復合方法摻加新型膨脹組分對硫鋁酸鹽類膨脹劑（ uea ）進行了改性試驗研究，根據多因素模糊綜合評價方法就各類膨脹劑的主要性能進行綜合評價，得出摻加新型膨脹組分pt的膨脹劑性能較優，取得了明顯的效果。According to direct and indirect testing results of organobentonite ' s structure and performance, the project that synthesize new organobentonite with calcium bentonite by replacing a part of conventional modifying agent for caprolactam has been proved reasonable and feasible, the affinity of organobentonie for organic substance was improved, it can be used in variable organic system
通過以上對有機膨潤土結構和性能的直接表徵和間接評價，證明以鈣基膨潤土為原料，用己內酰胺取代部分季銨鹽制備新型有機膨潤土的方案是合理的、可行的，制備的有機膨潤土具有對有機物良好的親和性和相容性，可用於各類有機體系。
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