粘土的老化 的英文怎麼說
中文拼音 [niántǔdelǎohuà]
粘土的老化
英文
ageing of clay-
The research overcomes the shortcomings of primers in common use, and breaks through the traditional astriction of absence of chemical bond between new and old concrete. both macrostructure and microstructure as well as bond mechanism was discussed and some further research advice was put forward
本研究克服了以往的界面劑僅能改善界面層宏觀或微細觀結構的缺點，突破了新老混凝土粘結層主要依靠范德華力提供界面粘結力而幾乎不存在化學鍵作用的缺點。Cementitious capillary crystalline waterproofing coating ( abbreviated ccwc ) is a new type of cement - based waterproofing materials, which is characterized by its very good adhesive performance and impermeability to water, self - rehabilitating ability, permanent waterproofing effect, good aging resistance and corrosion resistance, simple construction method and harmless to hunman etc. ccwc consists of ordinary portland cement, quartz sand and reactive substances and other supplementary ingredients, whose reactive substance can permeate into the internal part of concrete structures through water and produce insoluble crystals filling capillary pores or crack of the concret through reaction with cement hydrates and unhydrates
水泥基滲透結晶型防水材料是以硅酸鹽水泥或普通硅酸鹽水泥、石英砂等為基材，摻入活性化學物質而組成的一種新型防水材料。摻入的活性化學物質以水作載體向混凝土內部滲透，與混凝土中未水化的水泥及部分水泥水化產物發生結晶反應，生成不溶於水的結晶體，堵塞毛細孔道，使混凝土緻密、防水。這種防水材料具有粘結力強、抗滲性能好、自愈合能力強、防水效果持久、耐老化、耐腐蝕、易施工、對人類無害等特點。The results show that, the interfacial bonding strength of new and old concrete is evidence lower than the new or old concrete itself. besides the dimension and roughness of bond interface, the chemical reaction degree at the interface is also the main factor
分析結果表明：新老混凝土的界面粘結強度除了受老混凝土界面的尺寸及表面結構、粗糙程度影響外，還與新老混凝土粘結界面間發生化學反應的強弱有關。This paper presents an analysis method of mechanical behavior of aged concrete structures on elastic theory, and analyses the main causes of load bearing performance of concrete structures. the paper also illustrates some studies where structures exposed to the marine environment showed early deterioration and analyses the main causes of structural concrete deterioration, including concrete carbonization, corrosion mechanisms of concrete, and mechanisms of steel corrosion due to the penetration of chloride ions into the concrete. it shows that corrosion of the reinforcements is the main cause of structural concrete deterioration
本論文提出老化混凝土板的分層彈性理論，對混凝土結構的承載能力的影響進行分析；對浙江沿海混凝土結構及其構件的抗彎、抗剪、粘結性能以及結構的動力性能進行分析研究；提出了影響沿海混凝土結構耐久性的主要因素一混凝土的碳化作用，堿骨料反應，混凝土的腐蝕機理以及鋼筋混凝土中鋼筋銹蝕的影響因素。Enlarging concrete section, enveloping iron and strengthening with carbon fiber sheet are the widely - used methods to strengthen concrete column under axial compression, although these methods have their respective defects : wet - work in construction sit, long time for curing and deformation of appearance, the aging of pouring compounds and so on
目前對軸心受壓混凝土構件而言，常用的加固方法有混凝土加大截面法、外包鋼加固法、碳纖維布加固法等。而這些方法各有其缺陷，如現場濕作業問題、養護及外觀問題、灌漿材料或粘接劑的老化問題等。The crux of the reinforcement of the concrete structure is the bond behavior of the cohering face of the new - old concrete. the bond behavior of the cohering face under normal atmospheric temperature has been studied deeply and has more conclusions. what will happen about the bond behavior of the cohering face of the new - old concrete after high temperature ( e. g
利用混凝土進行補強加固的關鍵在於新老混凝土粘結面的粘結性能，粘結面在常溫下的粘結性能已有較多較深入的研究和結論，而對于補強加固的混凝土建築物在受到高溫（例如火災）后其新老混凝土粘結面的粘結性能有何變化Optical fiber grating sensors have been widely applied to key civil engineering for its excellent apperceive and anti - wear ability, however, nowadays the package and actual engineering application of optical fiber grating sensors cannot be realized without the macromolecule glue, the aging ability of macromolecule glue restricts the wear capability of optical fiber grating sensor, using metal - package technique without glue for optical fiber grating sensors can resolve these questions mentioned above
光纖光柵傳感器由於其優異的感知和耐久性能在重大土木工程檢測中得到了廣泛的應用，然而目前光纖光柵傳感器封裝開發以及實際工程應用時基本離不開高分子膠粘劑，而高分子膠粘劑「短命」的蠕變、老化等性能嚴重地制約了光纖光柵傳感器耐久性能的發揮，採用無膠金屬化的方法對光纖光柵傳感器進行封裝，可以避免上述問題的發生。2. the concept design is the key phase of the first stage of system optimization. the paper emphatically discusses with emphasis several issues difficulty to answer, such as the determination of the soil parameters, the soil pressure and the safety factor and the reliability of retaining structure, summaries and analyses the main geotechnical problems during the excavation on the four familiar geologic strata of saturation soft soil on the class i terrace of the yangtze river, aged - clay, expansive soil and loess and investigates carefully the patterns of deformation and destruction of pit slope in the saturation soft soil, puts forward three basic principles of selecting schemes of retaining structure, namely : facing to the problem, facing to the characteristics of excavation and environment
（ 2 ）概念設計是深基坑工程第一步優化? ?系統（方案）優化設計中的關鍵，文中重點討論了概念設計中的幾個難點問題，如土性參數的確定、土壓力的選取、深基坑工程的安全度和可靠度分析等；總結分析了飽和軟土、老粘性、膨脹土和黃土這四類常見地層條件下的深基坑工程中的主要巖土工程問題，其中重點研究了長江級階地上的飽和軟土深基坑邊坡變形和破壞模式，提出了選擇支護方案的基本原則，即：面向問題、面向基坑特點、面向周邊環境特點。分享友人