凍結鹽 的英文怎麼說
中文拼音 [dòngjiēyán]
凍結鹽
英文
freezing salt-
The methods of the abomasums treatment suggested that the freezing method had least influence on milk - clotting activity, while the salting air - drying and natural air - drying went to another extreme
皺胃處理方式研究結果表明,冷凍處理對酶活性影響最小,鹽漬風干處理影響較大,自然風干處理酶活性損失最多。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 investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological
分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象,依據astm標準及國際通用文物保護研究方法與評估準則相結合,通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定,及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響,對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。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。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。In the low - temperature - freezing stage, the water is frozen as ice phase, while the solute precipitate as the salt phase. the velocity of ice phase growth ( vf ) in the solution and the velocity of solute diffusion ( vd ) decide that whether the heavy segregation of solute appears
當低溫冷凍時,水以冰的形式凍結,溶質則以鹽的形式析出,形成冰鹽兩相;冰相生長速率和溶質擴散速率決定了溶質鹽是否發生大的偏聚。Products and systems for the protection and repair of concrete structures - test methods - determination of loss of mass of hydrophobic impregnated concrete after freeze - thaw salt stress
混凝土結構的防護和維修用產品和系統.試驗方法.鹽力解凍后疏水性浸漬混凝土質量損失測定But, when the total water quantity is reduced 30 % of present average amount in the 2010, the total salinity of groundwater will have significant increase in the different period ( pre - summer irrigation, post - summer irrigation, pre - autumn irrigation and pre - freezing up of soil four periods ). the water quality will be likely to deteriorate ; in addition, the prediction models of soil moisture and saline concentration are established
通過試區土壤水分、鹽分的bp與rbf模型的模擬與檢驗,預測了2005年、 2010年夏灌前、夏灌后、秋澆前與封凍前的土壤水鹽狀況,得出上壤水分隨著灌水量的減少呈下降趨勢,而土壤鹽分在淺層與中層呈現出不同的結果: oaThe 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。It was shown that salt expansion value of low liquid - limit clay was accumulated before the sixth freezing and thawing cycles, but the increment of salt expansion was reduced gradually with increasing cycles ; the salt expansion accumulation of low liquid - limit clay could be separated into three phases ; the deformation of clayey sand was mostly frost heave and subsidence under cycles, and collapsibility value of clayey sand was accumulated with increasing cycles ; the variation of salt expansion ratio and collapsibility ratio was a parabolic function of freezing and thawing cycles
試驗結果表明:低液限粘土前五次凍融循環過程中鹽脹具有較好累加性,隨著凍融循環次數的增加,鹽脹量增長速度逐漸降低;含砂低液限粘土的鹽脹過程可以被分為三個階段;粘土質砂在凍融循環過程中的變形主要為凍脹和沉降變形,具有較好的溶陷累加性;低液限粘土、含砂低液限粘土的鹽脹率和粘土質砂的溶陷率與凍融周期之間的關系符合二次拋物線變化規律。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。This paper analyzes on some factors influencing the water accumulation during the soil freezing process, probes into the mechanism of the water and salt migration during the process of water accumulation, and points out that the water accumulation of frozen zone provides the effect of water and salt migration for the hibernating propagation of the forest in the seasons of winter and spring
分析了土壤凍結過程中水分積聚的影響因素,探討了水分積聚過程中水鹽遷移的機理,指出凍結帶水分積聚為冬春季林木越冬繁衍提供了水分,同時鹽分也隨水分遷移到地表。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。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。Products and systems for the protection and repair of concrete structures - test methods - determination of thermal compatibility - part 1 : freeze - thaw cycling with de - icing salt immersion
混凝土結構的防護和維修用產品和系統.試驗方法.測定熱容性.第1部分:解凍.浸入防凍鹽融雪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。Through manipulating the air content of mixture to control concrete frost resistance is the universal method in projects, but the study on the effect of concrete pore structure change after air entraining to the concrete frost resistance and impermeability is few, the study on the effect of mineral additive to concrete pore structure and durability is even fewer, so carry on this aspect research has significant meaning
通過控制拌合物的含氣量來控制混凝土的抗凍融性,是目前工程中普遍採用的方法,但引氣后混凝土的孔結構變化及其對抗凍、抗滲等耐久性的影響研究較少,而無機鹽類外加劑對混凝土孔結構及其耐久性影響的研究更少,因此開展這方面的研究具有重要意義。Brine tank freezer
鹽水凍結池Probe into the influence of water accumulation on the water and salt migration during the freezing process of ground surface layer
地表土層凍結過程中水分積聚對水鹽遷移的影響When this is done, the water freezes first, leaving the salts in the remaining unfrozen solution
局部冷凍法是使鹽水部分冷凍,這時先行冷凍的是水,鹽則留在未曾凍結的液體中。分享友人