凍凝了的 的英文怎麼說
中文拼音 [dòngnínglēde]
凍凝了的
英文
congealed-
The performance of concrete at the later age ( after 60 days ) is improved when fly ash is added into concrete, and the abrasion resistance of concrete is perfect at 28 days. entraining air into concrete, the compressive strength is reduced but the flexural strength is improved when the air content less than 5. 5 %
摻粉煤灰混凝土的各項性能在後期( 60d后)均有所改善,其中耐磨性在28d時表現了較好的結果。在混凝土中引氣后,混凝土的抗壓強度下降較多但抗折強度在適宜的含氣量范圍內(小於5 . 5 % )有所提高,混凝土的抗凍性顯著提高,同時不會降低混凝土的耐磨性。Under the different freezing - thawing cycle circumstance, three factors of water binder ratio, air content and mineral admixture are analyzed by using the method of orthogonal table. the test results show that the chief influencing factor is the water binder ratio in water freezing - thawing cycle circumstance, and in salt freezing - thawing cycle circumstance is the air content. this could illustrate that entraining air into concrete can improve the frost resistance of concrete effectively in salt freezing - thawing cycle
分析了在純水和3 . 5 % nacl溶液中受凍后,水膠比、含氣量和摻合料對混凝土飽和系數及變化速率的影響規律,試驗結果表明水膠比對混凝土水凍時的飽和系數及變化速率影響顯著,而鹽凍情況下含氣量則是主要影響因素,說明引氣能顯著提高混凝土的抗鹽凍性能。Mechanical performance, frost resistance and abrasion resistance of concrete with fly ash, air entraining agent and four kinds of inorganic salts including sodium sulfate, sodium nitrite, calcium nitrite and sodium chloride are mainly studied in this paper
本文研究了在路面水泥混凝土中摻入粉煤灰、引氣劑和四種無機鹽( na2so4 、 nano2 、 ca ( no2 ) 2和nacl )后,混凝土的力學性能、抗鹽凍剝蝕能力和耐磨性等性能的變化規律。The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design
試驗觀測內容包括氣溫、地溫、基土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測,分析各因素對基土凍脹量的影響,評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果,並進行技術和經濟綜合分析比較,推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式,即混凝土板下鋪設聚苯乙烯板和砂礫石換填層結構型式,加以優化設計,用於工程實踐。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。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。The cold resistance and the water permeability resistance of the recycled coarse aggregate concrete were also test. the principle and the influencing factors of the drying shrinkage, the freeze thaw action and the water permeation action of the recycled coarse aggregate concrete were briefly narrated
還測試了再生粗骨料混凝土的抗凍性和抗滲性,簡要敘述了再生粗骨料混凝土干縮變形、凍融作用、滲透作用的機理以及影響因素。The research of high performance pavement concrete ( hppc ) is done in two sides. one is mixture design, the other is pavement performance. the mixture design and design flowchart of hppc is given on the base of nc with the consideration of characteristic of both hppc and nc. the grow law, influencing factor and formation mechanism of hppc strength is analisised by perpendicular experiment. in the same, the fatigue equations are set up for hppc and hppc i on the base of fatigue experiment. the fatigue mechanism of hppc is analysised by damage mechanics and fracture mechanics. brittleness, frost resistance and abrasion resistance of hppc is researched with the camparition to nc i. at last, the economic analysis of hppc is done by two kinds of way
結合高性能混凝土與普通路面混凝土的特點,提出了建立在普通路面混凝土基礎上的高性能路面混凝土配合比設計方法,給出了設計流程;通過正交試驗(強度試驗) ,分析了高性能路面混凝土的強度發展規律、影響因素與形成機理;同時,根據疲勞試驗結果採用雙參數weibull分佈模型分別建立了高性能路面混凝土和高性能路面混凝土(沒有摻加硅粉)疲勞方程,應用損傷力學和斷裂力學,分析了高性能路面混凝土的疲勞機理;並採用了對比分析方法,研究了高性能路面混凝土的脆性、抗凍性和耐磨性等。Polypropylene fiber reinforced concrete ( ppfrc ), steel fiber reinforced concrete ( sfrc ) and mixed fiber reinforced concrete used in plate of bridge are studied. the performances of concrete with different fiber content, such as compression strength, tension strength, splitting tensile strength, frost resistance, shrinkage, early shrinkage and chloride ion diffusion coefficient ( dcl - ) are studied
分別研究了改性聚丙烯纖維、鋼纖維和混摻纖維對橋面板用混凝土性能的影響,研究了不同纖維摻量混凝土的抗壓強度、抗折強度、劈裂強度及抗凍性、干縮性能、早期開裂和氯離子擴散系數進行了試驗研究。Followed this purpose, the paper used the orthogonal design method, combined the materials and the mathematical statistics knowledge, analyzed the range of intensity and anti - frozen as well as action mechanism contrastively under the single factor function and the multi - factors correlation. proposed that when we mixed two or more extra materials into concrete, we cann ’ t purely increase the quantity of the one to enhance some concrete ’ s performances, which guided by the single factor function. on the contrary, we determined the quantity of this kind of extra material must by the conclusion of specific experiment under the multi - factors correlation
圍繞這個目的,論文採用正交設計方法,結合材料學和數理統計學知識,對單因素作用下和多因素交互作用下混凝土強度及抗凍性的變化幅度及作用機理進行了對比分析,提出在混凝土中摻入兩種或兩種以上外摻料時,不能單純以單因素作用下的實驗結果作為指導,用提高某一種外摻料的摻量來改變混凝土的某項性能時,必須以具體試驗得出的結論來判定該種外摻料的用量。Calcium - enriched fly ash debases the numerical value of critical strength of frozen injury and improves the microstructure because of its form effect, activity, tiny aggregate effect and self - hardening property. so it is feasible to make it an important component of minus - temperature concrete
因為增鈣粉煤灰具有形態效應、活性效應、微集料效應和自凝性、自硬性等優勢,它改善了混凝土的微觀結構,降低了負溫混凝土的抗凍臨界強度,所以增鈣粉煤灰可以作為負溫混凝土的摻合料。Through the bonding tests and the theory analysis between the advanced composite glass sheets and the concrete under the general load - carrying condition, the iterative load - carrying condition, the freeze - thaw action, and the defective bonding, the calculative model has been established, and the numerical value of fibre sheet strain under different load - carrying has been confirmed. the bond strength calculative expressions for the concrete bonded with glass fibre sheet under the pull - shear and the bend load - carrying conditions have been established. the author put forward the decreasing coefficient and the calculative expressions for the influence of reinforce effect by the non - effective area and the calculative expressions for the influence of the freeze - thaw action on the carrying capacity of the concrete beams
本文採用美國泰扶高強復合玻璃纖維布以及與之性能相當、由南京玻璃纖維研究院自行研製開發的egfw430型玻璃纖維布兩種材料,通過在靜載、重復荷載、凍融及有缺陷粘結條件下的高強玻璃纖維布與混凝土粘結性能的試驗研究與理論分析,建立了玻璃纖維布-混凝土的粘結計算模型,明確了不同受力狀態下纖維布應變的設計取值,提出了玻璃纖維布-混凝土抗剪粘結強度的計算公式;確定了考慮非有效粘貼面積對加固效果影響的折減系數;給出了凍融循環次數引起承載力下降的插值計算方法;並驗證了重復荷載作用下玻璃纖維布與混凝土良好的粘結性能。Aminobenzenesulfonic acid super - plasticizer is selected though cement paste test, which be provided with high water - reducing property, low slump loss and good compatibility with cement. according to the request of super high early strength, admixture rf is obtained though tests to compare performances of different accelerators and admixtures. experimental research and analysis are carried out on coarse aggregate ' s grain - size effect and composite aggregate ' s bulk - density to take sensitivity of coarse aggregate into account
通過水泥凈漿試驗比較選擇了減水率高、坍落度損失小、與水泥適應性好的氨基苯磺酸鹽高效減水劑;針對超早強的性能要求,試驗比較了不同早強劑及早強性摻合料的性能表現,研製了早強性能顯著、與高效減水劑和水泥相容性較好的rf摻合料;考慮到修補混凝土對粗集料粒徑的敏感性,對粗集料粒徑效應及混合集料堆積密度進行試驗研究與分析;並對修補混凝土的抗折、抗壓、新老界面粘結強度以及抗凍性等進行了試驗研究。The research work about durability of high - performance self - compacting micro - expansive concrete show that the micro - expansive function and micro - bubble producing function of mineral admixture h can improve the impermeability, frost - resistance ability and sulfate eroding resistance ability etc of self - compacting concrete
研究了免振搗微膨脹高性能混凝土的各項耐久性能,結果表明:山于新型礦物添加劑h的微膨脹功能和微量發氣功能,研製成功的免振搗微膨脹高性能混凝土具有優良的抗滲性、抗凍性、抗硫酸鹽侵蝕等耐久性能。The change of specimens scaling mass were measured, both the saturation degree of specimens and its changing rate within freezing - thawing are calculated
並通過測定混凝土試件的剝落量,得出了凍融循環過程中混凝土的飽和系數及變化速率。Comparing with the reference concrete, the resistance of freezing - thawing cycles and chloride diffusivity in calcium - enriched fly ash concrete increase, because the pore structures and interface structure are optimized, so the durability of calcium - enriched fly ash concrete is perfect
相對于基準混凝土,增鈣粉煤灰混凝土的抗凍性和抗氯離子滲透性能均有所提升,這主要是由於增鈣粉煤灰改善了混凝土的孔結構和界面結構,從而使其具有更為優異的耐久性。Abstract : based on the test results of frost micro pore structure density distribution of high strength concrete at minus temperat ure ( hscmt ), the frost damage fiber bundle model of hscmt was buitl. the purpose is to study frost damage factor of hscmt in the future, to deduce lost efficiency p robability of hscmt and prevent hscmt from frost in cold weather
文摘:根據負溫高強混凝土凍結顯微孔結構密度分佈結果,建立了凍結損傷纖維束模型,為進一步研究負溫高強混凝土的凍結損傷基因,推斷負溫高強混凝土的失效概率,及負溫高強混凝土受凍害的防止打下基礎。This paper according to related survey and experiment data, analyses some factors of frost and salt resistance based on the cement damage of concrete pavement of frost resistance mechanism, which may effect on the northeast area highway cement frost resistance of concrete pavement, then raises major measure of frost and ask resistance on cement concrete pavement based on the result of large quantities freeze and melt circulating experiment
摘要根據現場調查及相關試驗數據,從水泥混凝土路面抗凍性破壞機理出發,分析了冬季除冰鹽對東北地區高速公路水泥混凝土路面抗凍性能的影響,提出了影響水泥混凝土路面抗鹽凍性能的主要因素,並根據實驗室內大量凍融循環試驗的結果,提出了提高水泥混凝土路面抗鹽凍性能的主要措施。The result indicated that, mix the mineral mixture of fly ash, flag into concrete can optimize the concrete pore structure, improve the concrete compressive strength and impermeability, and along with the age increment the improvement become more obviously ; after saturated freezing and thawing, the concrete pore structure changed apparently, total porosity increased, macro porous quantity rapid increased, small pore quantity reduced, mean radius and most probable aperture increased ; and the more saturated degree, the more obviously destructive effect
研究表明:在混凝土中摻加粉煤灰、礦渣等礦物摻合料優化了混凝土的孔結構,提高了混凝土的抗壓強度和抗滲性能,且隨齡期的延長這種改善作用更加明顯;飽水凍融后混凝土的孔結構變化明顯,總孔隙率增加,大孔數量急劇增大,小孔數量減小,平均孔徑和最可幾孔徑增大;且飽水程度越大,這種破壞作用越明顯。I leaned against a gate, and looked into an empty field where no sheep were feeding, where the short grass was nipped and blanched
我倚在一扇大門上,凝望著空空的田野,那裡沒有覓食的羊群,只有凍壞了的蒼白的淺草。分享友人