酸性硫酸鹽土 的英文怎麼說
中文拼音 [suānxìngliúsuānyántǔ]
酸性硫酸鹽土
英文
acid sulphate soils- 酸 : 酸構詞成分。
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 硫 : 名詞[化學] sulphur; sulfur [美國] (16號元素, 符號s)
- 鹽 : 名詞1. (食鹽; 鹽類) salt 2. (姓氏) a surname
- 酸性 : [化學] acidity; acidness; acerbic; acidic property酸性材料 acid material; 酸性促進劑 acid acceler...
- 硫酸 : [無機化學] sulphuric acid; sulphoacid; vitriol; vitriol oil; dipping acid; sulfuric acid; hydric ...
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The result of experiment shows that und er the conditions of proper ai r - entraining, concrete with 20 % fly ash has excellent frost - resistance. the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly. the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash
試驗結果表明:粉煤灰摻量為20的混凝土在適量引氣的條件下具有良好的抗鹽凍性能;粉煤灰摻量為55的混凝土在摻加uea膨脹劑后其抗鹽凍性能有明顯改善;大摻量粉煤灰硫鋁酸鹽水泥混凝土的抗鹽凍性大大低於同摻量的硅酸鹽水泥混凝土。The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed
摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。Abstract : the result of experiment shows that und er the conditions of proper ai r - entraining, concrete with 20 % fly ash has excellent frost - resistance. the frost - resistance of concrete with 55 % fly - ash which is admixed with united expansive agent ( uea ) has been improved greatly. the frost - resistance of sulfate aluminate cement concrete with high volume of fly - ash is dramatically lower than that of silicate cement concrete with the same volume of fly - ash
文摘:試驗結果表明:粉煤灰摻量為20的混凝土在適量引氣的條件下具有良好的抗鹽凍性能;粉煤灰摻量為55的混凝土在摻加uea膨脹劑后其抗鹽凍性能有明顯改善;大摻量粉煤灰硫鋁酸鹽水泥混凝土的抗鹽凍性大大低於同摻量的硅酸鹽水泥混凝土。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。This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異,因此表現為比普通混凝土更為較高的耐久性要求;負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能,才能夠滿足工程實際應用的要求,這也是負溫混凝土必須解決的兩大技術關鍵;通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討,採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線,通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ;並在此基礎上配製不同等級負溫高性能混凝土,開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究;通過對fd - 1組分和摻量的調整,優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。For the background of our ten - five main scientific project, based upon the structure and compositions of expert system and their field characteristics and software development mode, the ideas and methods of expert system of concrete sulfate resistance project are discussed in this article, and a prototype of system integration is given
本文結合國家「十五「重點攻關項目(混凝土安全性專家系統)中的子系統?抗硫酸鹽侵蝕專家系統,根據專家系統的組成結構和領域特點,結合知識結構的一種新的組織和表示模式,研究了專家系統開發的實現技術,並對其進行了最後的集成。The liquid - gas method is improved based on the above methods, overcoming the defects of gbj82 - 85. using the liquid - gas method, permeability condition of concrete can be tested and indicated quickly, efficiently, and the influences on concrete of alkali - aggregate reaction, sulfate attack, carbonization, steel rust, freeze and thaw can be inflected indirectly. it is significant on the research and monitor on the durability of concrete
溶液氣壓法是在上述方法之上進行改進提高的,克服了國標gbj82 - 85方法中的許多不足之處,能夠多角度、快速、高效、真實、準確地再現現場混凝土的滲透情況,並且能間接反映堿-骨料反應、鋼筋銹蝕、碳化、硫酸鹽侵蝕及凍融破壞的影響,對混凝土耐久性的監測與研究具有重要意義。Effect of steel pit on the mechanical property was discussed in succession. numerical results show that exponential relation exists between the yield strength and depth of corrosion pit. the work in this part is the theoretical foundation on the study in modeling of constitutive behavior of the corroded concrete and rusty rebar
基於微觀腐蝕機理分析了硫酸鹽介質對混凝土的膨脹性腐蝕作用,從理論上研究了由於膨脹作用引起混凝土內部產生的膨脹應力;討論了鋼筋表面銹蝕坑對鋼筋力學性能的影響,建立了鋼筋屈服強度與蝕坑深度之間的關系;為受腐蝕混凝土和銹蝕鋼筋本構關系的建立提供了一定的理論基礎。For concrete structure in the practical engineering, the non - mechanics damages, such as alkali - aggregate reaction, sulfate attack, carbonization, steel rust, freeze and thaw, and so on, are unavoidable due to the exist of erosive media. the deterioration form of mono or multi - factor influences on the concrete property of construction and durability greatly, and shortens the service life of the concrete to a large extent. permeability of concrete is the most important factor for these non - mechanics damages, so the permeability test of concrete is the normal and required item to study the durability of concrete
實際工程中的混凝土結構,因侵蝕性介質的存在而使非力學破壞行為無處不在,這些非力學破壞行為包括堿集料反應、硫酸鹽侵蝕、碳化、鋼筋銹蝕、凍融等,單一的破壞形式或多形式的復合破壞作用對混凝土結構性能及耐久性能均有著較為嚴重的影響,在很大程度上縮短了建築物的服役年限,而這些非力學破壞在很大程度上取決于其滲透性,所以測試混凝土滲透性能是研究判斷混凝土耐久性的常規必測項目。At the same time fly ash and silica fume also can repress the anti - sulfate attack and the alkali - aggregate reaction ; in addition, the relation between air - entraining admi xture, cementitious materials quantity with freezing - thaw property of concrete were studied ; and according to the different affecting factors the durable life of concrete was estimated
同時粉煤灰、硅灰還可以抑制硫酸鹽侵蝕及堿集料反應;此外,分析了混凝土中含氣量、膠凝材總量等與混凝土抗凍性的關系。並且,根據相應影響因素對混凝土耐久性壽命進行了預測。Based on the researching of hydration products and the long - term mechanics property, it ' s discovered that the fa - lime - sulfate system has better duration property so as to be used in soft soil foundation treatment
通過水化產物及長期力學性能的研究,發現粉煤灰-石灰-硫酸鹽混凝土樁具有很好的耐久性,適用於軟土地基的處理。As far as the durability concerned, the resistance of sulfate attacks of the normal concrete could n ' t compared with the hpc
耐久性方面,普通強度混凝土的抗硫酸鹽性能要比高性能混凝土差。Soil quality - determination of water - soluble and acid - soluble sulfate iso 11048 : 1995
土質.水溶性硫酸鹽和酸溶性硫酸鹽測定Soil quality - chemical methods - determination of water - soluble and acid - soluble sulfate
土質.化學方法.水溶性硫酸鹽和酸溶性硫酸鹽的測定Standard test method for soluble sulfate in ceramic whiteware clays photometric method
衛生陶瓷粘土中可溶性硫酸鹽的標準試驗方法Acid sulphate soils
酸性硫酸鹽土Hydrodynamic mechanism on the change of different forms of acid in acid sulfate soil
酸性硫酸鹽土酸消長的水動力機制研究Experimental researches and analysis of expansion characteristics of sulphate salty soil
硫酸鹽漬土鹽脹特性試驗及分析The paper designs some teams of different mix proportion concrete according to the different replacement of the recycled aggregates and fly ash, and researches their working properties and mechanical properties, and analyses influence factors of the working properties and the mechanical properties of the recycled concrete such as the replacement rate of recycled aggregates, the replacement amount of fly ash, surface treatment of recycled aggregates, adding the high range water reducing agents and mineral admixture, etc. the paper researches the durability of recycled concrete as to the sulphate - corrosion resistance, the permeability resistance, the frost - resistance, etc. and analyzes some factors, as to the replacement of recycled aggregates, the replacement of fly ash, the surface treatment of recycled aggregates, adding high range water reducing agent and mineral admixture, bring the influence to the properties of recycled concrete, and analyzes the economic feasibility of the application of the recycled concrete
本文根據再生骨料和粉煤灰的不同取代率設計了幾組不同配合比的再生混凝土,對其工作性能和力學性能進行了研究,分析了再生骨料的取代率、粉煤灰的取代量、表面處理再生骨料及摻加高效減水劑和礦物外加劑等因素對再生混凝土的工作性能和力學性能的影響。本文根據配製的再生混凝土對其抗硫酸鹽侵蝕性能、抗滲性、抗凍性等耐久性進行了研究,分析了再生骨料的取代率、粉煤灰的取代量、表面處理再生骨料及摻加高效減水劑和礦物外加劑等因素對再生混凝土的這些性能的影響。並對再生混凝土的應用進行了經濟可行性分析,為再生骨科和再生混凝土的應用提供了有利的支持。For reducing the water content of pore, the feasibility of drinking and cementing, and the key influence factors of drinking capability of fa - lime - sulfate system concrete pile molded in dry state are analyzed
為了降低地下孔隙水含量,研究了粉煤灰-石灰-硫酸鹽混凝土樁採用乾料形態成型后吸水硬化的可行性與關鍵影響因素。分享友人