凍融試驗 的英文怎麼說
中文拼音 [dòngróngshìyàn]
凍融試驗
英文
freeze-thaw test- 凍 : Ⅰ動詞1 (液體或含水分的東西遇冷凝固) freeze 2 (受冷或感到冷) feel very cold; freeze; be frostb...
- 融 : Ⅰ動詞1 (融化) melt; thaw 2 (融合; 調和) blend; fuse; be in harmony Ⅱ形容詞[書面語]1 (長遠; ...
- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 試驗 : trial; experiment; test
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Long term immersing marshall test and frozen - thaw cycle test were used to investigate the anti - stripping performance of andesite asphalt mixture using cement and anti - stripping agent
摘要採取長時間浸水馬歇爾試驗和多循環凍融劈裂試驗方法,對摻加了水泥、抗剝落劑的安山巖集料瀝青混凝土水穩定性能進行研究。The research results show that when the fly ash content is under 30 %, the strength of rcc can be increased but the effect is a little ; and with the fly ash content increased the dry shrinkage of the rcc reduced straightly, and the abrasion resistance and freeze resistance increased obviously. ( 3 ) fly ash can increase durability of the rcc and under the experiment condition, the perfect mixing content is 30 %
試驗結果表明: ( 1 )粉煤灰摻量小於30 %時能提高碾壓混凝土強度但影響度不大; ( 2 )隨著粉煤灰摻量的增加,碾壓混凝土的干縮呈直線降低,且抗磨性和抗凍融能力明顯提高; ( 3 )粉煤灰能有效提高碾壓混凝土的耐久性,且在試驗條件下的最佳摻量為30 % 。Following is the factors ideating with the surface of old concrete in different way ( including brushing surface, chiseling surface, cleaving surface ), adherence agent ( including cement slurry, cement sand slurry, cement slurry with the u expansion agent ), the freeze - thaw circulation times and air - entraining. as a result, we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree. the larger rougeness is, the larger the splitting tensile strength on the adhension face is. the kind of adhesion agent is also influence on the adherence capability of new on old concrete. the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete. the analysis of tests give some advices to the practical engineering
主要考察了老混凝土表面不同處理方式(刷毛面,鑿毛面,劈裂面) 、界面粘結劑類型(水泥凈漿,水泥砂漿, u型膨脹劑水泥漿) 、凍融循環次數等對新老混凝土粘結面劈拉強度的影響,以及凍融作用下新混凝土加氣對粘結面劈拉強度的影響。試驗結果表明,粗糙度對新老混凝土粘結性能有重要影響,隨著粘結面粗糙度的增大,粘結面劈拉強度不斷增加;界面粘結劑類型對新老混凝土粘結性能有一定影響,在凍融作用下, u型膨脹劑水泥漿粘結效果不如水泥凈漿和水泥砂漿;凍融循環對粘結面劈拉強度有較大影響,加氣能明顯改善新老混凝土粘結面的抗凍能力。2 - e4 - a and 82 - 6 are hybridized during their log growing time, and the hybrid - hybridomas are cloned for 3 times and produce 6 hybrid - hybridoma cells. the chromatosome of hybrid - hybridoma 3 - hu and hybridoma 2 - e4 - a and s2 - b are counted, and the antibody of ascites fluid or culture supernatant of 3 - hn is prepared. the positive clones are detected by three methods at the same time : rbc agglutination for monospecific anti - human rbc type a antibody, indirect elisa for anti - p24 antibody, and rbc solid - phase adherence for bispecific antibody
選其中一株3 - h _ ( 11 )做雜交-雜交瘤細胞染色體計數,同時計數兩母株2 - e _ 4 - a和s _ 2 - b的染色體數:制備腹水型和上清型抗體,用三種方法同時檢測其中的雙特異性抗體、單特異性抗人紅細胞抗體和抗p24抗體,即紅細胞固相吸附法測雙特異中文摘要性抗體,紅細胞凝集試驗測單特異性抗人a型紅細胞抗體,間接elisa法測抗p24抗體;用腹水型抗體做耐熱性及耐凍融實驗。Test methods for natural facing stones part 1 : dry, wet and after freezing test methods for compressive strength
天然飾面石材試驗方法第1部分:乾燥水飽和凍融循環后壓縮強度試驗方法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。Experimental results of marshall remnant stability test, water susceptibility tensile strength ratio ( tsr ) test and rutting test show that graphite modified ecac possesses of high anti - water damage ability and excellent high - temperature stability, which is expected to apply as new - type pavement
馬歇爾殘留穩定度試驗、凍融劈裂試驗和車轍試驗表明石墨導電瀝青混凝土的抗水損害能力強,高溫穩定性能良好,可作為新型路面使用。Experimental study of concrete resisting to freeze - thaw damage
混凝土的抗凍融破壞試驗研究From experimental result, i preliminarily know that eps is good thermal insulation material because the absorption of water is low and heat insulation is good, it is practicable at preserving temperature field of frozen earth roadbed and bringing frozen disaster under control ; second, according to the analysis of the eps that is applied into practical project, i have studied the practical effect which eps preserve roadbed temperature field, and the influence that was made after building field. i have get that eps can influence moisture content and frozen upper limit, through practical measuring data, i have studied freezing and expanding quantity and melting and submerging quantity during a complete frozen and melting cycle as well as have expanded and proved the practical application effect of eps with some reference significance to deep research of some connected problems. finally, through computer data analysis, setting up the analytical model of finite unit, i have simulated the temperature field of roadbed heat preservation, then expounded and proved that the height of embankment influenced the effect of thermal insulation material
其一是對聚苯乙烯泡沫塑料( eps )保溫板以及天然路基土層、路堤填料進行了室內試驗分析,結合國內外現在的有關科研成果,綜合確定其各項特徵參數;從試驗結果初步認識到聚苯乙烯泡沫塑料是一種吸水率低,隔熱性好的保溫材料,在凍土路基溫度場的保護和凍害治理方面是可行的;其二通過eps保溫板在現場工程實踐中的應用分析,研究了保溫板在保護路基土層溫度場的實際效果以及修築路堤后造成的影響,保溫板對土體含水量、凍結上限的影響,通過實測資料,研究了在一個完整的凍融周期內整個路基的凍脹量和融沉變形量,論證了保溫板的實際應用效果,對有關問題的進一步研究和相關工程設計具有參考意義;其三,通過計算機數值分析,建立有限元分析模型,對保溫路基的溫度場進行了模擬計算,論證了路堤高度對保溫材料效果的影響。In the concrete test cubes damages under freeze thaw cycles, the theory of the frost damages is explained and freeze - thaw test is done. from test results, the thesis analyzes the main reasons of frost damages
在凍融作用下混凝土試件的損傷部分中,首先闡述了混凝土的凍害機理,然後進行混凝土的抗凍試驗,通過試驗結果分析影響混凝土抗凍性的主要因素。South high temperature and wet climate easily leads asphalt pavement to water damage, this writer participated in the guangdong meihe highway asphalt pavement construction, mainly through the asphalt mixture marshall immersion test, splitting freeze - thaw test anylyze asphalt mixture types and asphalt content ' s influences to the water stability, and gives the linear fitting relationship about the soaking remnants stability and freeze - thaw splitting strength and oil - stone ratio. and water stable indicators and the oil - stone ratio ' s second linear fitting relationship, finally stressed asphalt and asphalt amount significance to water stability
摘要通過瀝青混合料的浸水馬歇爾試驗、凍融劈裂試驗分析了瀝青類型及瀝青用量對瀝青混合料水穩定性的影響,並給出了浸水殘留穩定度與凍融劈裂強度與油石比的線性擬合函數關系,以及水穩性指標與油石比的二次函數關系,最後指出改性瀝青和瀝青用量對混合料水穩定性的意義。Thaw settlement cause negative friction. this paper base on the thought of " initiative cooling ", aim at three problems existing in common concrete pile used in frozen soil, a new type of pile is proposed to overcome the disadvantages of the classical pile used in frozen soil. pile body within active layer is fluted and refilled with porous materials such as gravels and ballasts, convection will be occur and then thermal exchange inside porous material in winter while only heat conduction exists in summer, as a result the soil around flutings will be cooled, so the top line of permafrost will be drive up
本文基於「主動冷卻」地基的思想,以及針對凍土地區普通混凝土樁存在的三大問題,提出了一種新型樁的設計思路,運用數值模擬試驗手段對其冷卻機理與加固機理進行了系統研究,即在凍融活動層的深度范圍內,在混凝土樁身的表面刻槽,修築完時槽內填充碎石、塊石等多孔介質,通過外界大氣溫度的自然波動下多孔介質在冬季時存在的對流換熱機制,而在夏季只存在熱傳導,來達到主動冷卻樁周凍土和抬升凍土上限的目的。Dry, wet and after freezing test methods for compressive strength
乾燥水飽和凍融循環后壓縮強度試驗方法Dry, wet and after freezing - test methods for compressive strength
乾燥水飽和凍融循環后壓縮強度試驗方法Experiments indicated that compared with the native starch, the paste made of granular maize starch soluble in cold water prepared by alcoholysis showed higher apparent viscosity, higher stability of freeze thaw and lower retrogradation ; while the paste made of granular tapioca and potato starch soluble in cold water showed lower viscosity, stability of freeze thaw and retrogradation
試驗證明,相對于原澱粉糊,醇解法制備的顆粒狀冷水可溶玉米澱粉糊的表觀粘度和凍融穩定性有所提高,凝沉性降低;顆粒狀冷水可溶木薯和馬鈴薯澱粉糊的表觀粘度、凝沉性和凍融穩定性均降低。Methods of test for masonry units - determination of freeze - thaw resistance of calcium silicate masonry units
圬工砌塊的試驗方法.硅酸鈣磚的耐凍融試驗The concrete used in testing bridge is monitored and some performance at definite age including compressive strength, splitting fensile strength, frost resistance, scaling frost resistance, chloride ion diffusion coefficient ( dcl - ), resistance of carbonization and pore structure by mercury porosimetry are tested. these performances are compared with that of concrete which designed by traditional method. the results show that mechanical properties of concrete designed by high durability concrete proportion and traditional method meet require ment at any age, however, frost resistance, scaling frost resistance, chloride ion diffusion coefficient ( dcl - ), resistance of carbonization and pore structure of the former are better than the latter, so high durability concrete is economic benefit
對試驗橋用混凝土的質量進行監控,並成型試件測量所需齡期內的抗壓強度、劈裂強度與抗凍融、抗鹽凍、氯離子擴散系數( dcl - ) 、抗碳化等耐久性能指標及孔結構,並與傳統混凝土進行對比研究,結果表明:高耐久性混凝土及按傳統配合比設計的混凝土的力學性能均能滿足相應齡期的要求,但前者的抗凍融性能、抗鹽凍性能、抗碳化性能、 dcl -和孔結構明顯優於後者,並具有明顯的社會經濟效益。Based on the fast freeze - thaw test, the alkaline resistance test, the water immersion test, the wet thermal exposure test and artificial accelerated aging test, the influence of the corroding environment on the mechanical behavior of fiber reinforced polymer ( frp ) laminates and adhesive was studied
摘要通過快速凍融試驗、耐堿性試驗、浸水試驗、濕熱暴露試驗、人工加速老化試驗,研究了腐蝕環境對纖維增強復合材料( frp )的復合體及粘結劑力學性能的影響。Chimneys - freeze - thaw resistance test method for chimney products
煙囪.煙囪產品的抗凍-融試驗方法For example, concrete durability - design relies mainly on complex special testes, e. g. thawing and freezing test and permeability resistance test etc. on theories and test methods of workability - design, testes for theological properties of concrete, workability evaluation, determination of optimum dosage of water - reducer etc - are all depend on experimental methods
例如,在耐久性設計方面,依賴于專項復雜測試,如抗凍融試驗和抗滲試驗等;在工作性設計的理論和測試方面,混凝土流變性能的測試、工作性的評價、減水劑最佳摻量的確定等都沒有脫離經驗的方法。分享友人