混凝土滲透性 的英文怎麼說
中文拼音 [húnníngtǔshèntòuxìng]
混凝土滲透性
英文
permeability of concrete- 混 : 混形容詞1. (渾濁) muddy; turbid2. (糊塗; 不明事理) foolish; stupid
- 凝 : 動詞1. (凝結) congeal; curdle; coagulate 2. (注意力集中) fix
- 滲 : 動詞(液體慢慢地透過或漏出) ooze; seep
- 透 : Ⅰ動詞1 (滲透; 穿透) penetrate; pass [seep] through 2 (暗地裡告訴) tell secretly; let out; lea...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 混凝土 : concrete; beton; jetereting混凝土壩 concrete dam; 混凝土板 concrete slab; 混凝土標號 concrete gra...
- 滲透性 : permeability滲透性防腐劑 osmose preservative
- 滲透 : 1 [物理學] [生理學] osmosis2 (液體從細小空隙中透過) permeate; seep; permeation; seepage; inflow...
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The oxidation of pyrite engenders acid water that is causticity to concrete, bring forward the prevention and cure measure to it
根據水系的發育及巖石的透水性,提出防滲措施;黃鐵礦氧化產生的酸性水對混凝土具有腐蝕性,提出防治措施。Permeable durability reinforcing agent used for concrete surface is a material sealing surface of concrete, and it can permeate into inner of concrete and fill or block the pores of concrete surface with dry crystal or emulsoid generated by reaction between it and chemical compound in concrete
混凝土表面用滲透型耐久性增強劑是一種針對混凝土表面的滲透封閉型材料,其可滲入混凝土內部,並通過乾燥結晶或與混凝土內部相關物質反應生成乳膠體將混凝土表層的孔隙填充、堵塞,對已有混凝土結構的防護具有重要意義。Impermeability of concrete is improved significantly, so the traditional test method to evaluate impermeability of concrete is inapplicable
傳統的測定混凝土滲透性的方法已經越來越不適用。Several problems of the durability of the reinforced concrete ( rc ) member in marine environment have been studied in this paper, which includes chloride ' s ingression in concrete, performance of concrete in marine environment, non - uniform corrosion model of reinforcing bar, initial corrosion of reinforcing bars in concrete beam and mechanical performance of corroded concrete member
本文對海洋環境中鋼筋混凝土耐久性的若干問題進行了研究,主要包括氯離子在混凝土中的滲透、混凝土在海洋環境侵蝕下的性能變化情況、鋼筋的不均勻銹蝕、混凝土梁中的鋼筋初始銹蝕、和銹蝕混凝土梁的力學性能等內容。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。Water pressure method is applicable for evaluating permeability of concrete. the test time needed is short, and operation and pretreatment is easy
通過研究發現水壓法對于評價混凝土滲透性來有很好的適用性,而且試驗周期短,操作簡便,對試件的預處理簡單。The polyacrylonitrile have no use to improve the homogeneity of concrete. the homogeneity of concrete have bad effect to compression strength, but the effect to chloride ion coefficient of diffusion is not obvious. for concrete used generality, if it ’ s homogeneity is acceptable ( k 7 % ), the percentage of lost of the compression strength will lower than 10 %
勻質性對抗壓強度的影響較大,對氯離子滲透系數的影響不明顯,對於一般用途的混凝土,勻質性良好( k 4 % )時,強度損失在5 %以內,勻質性合格( k 7 % )時,強度損失在10 %以內;對于深層澆注的混凝土,離析度k 3 %時上下層強度的差異率才能保證在5 %以內。The result shows the high performance concrete ( hpc ) with low w / b normally has denser surface, consuming the ca ( oh ) 2 by pozzolanic reaction and low permeability, which are allowed to restrain effectively the neutralization to decrease the cracking for better durability on concrete
結果顯示,以低水膠比之高性能混凝土,介面頗為緻密,卜作嵐反應消耗氫氧化鈣,低滲透性等直接有效的抑制混凝土的中性化,可減低裂縫機率,進而提升混凝土的耐久特性。We have researched the factors that influenced the homogeneity of concrete that include the lightweight aggregate, w / c, admixture and vibrating time. we have also studied on the influence the homogeneity of concrete to the strength and the permeability of the concrete
從影響輕集料混凝土勻質性的因素出發,研究了輕集料、水灰比、外加劑、振動時間等對拌和物勻質性的影響及勻質性對強度、滲透性的影響。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。In this model the anisotropic constitutive models of concrete are introduced according to its different behaviors under compressive stress and tensile stress, and it is considered that a certain amount of rust product is carried away from the rust layer around the reinforcement and deposited within the open cracks after the cover cracked, which will reduce the expansive pressures
由於混凝土拉壓性能的不同,應用各向異性本構關系,並考慮保護層開裂以後,鋼筋的銹蝕產物會有部分滲透到裂縫中,降低銹蝕產物對保護層的膨脹壓力,對鋼筋銹蝕膨脹應力進行了計算。Abstract : based on the results of percolation test for core samples from a certain roller compact concrete dam in china, this paper presents a summary review on the law of precolation features of roller compact concrete
文摘:根據國內某碾壓混凝土工程壩體芯樣滲透特性試驗成果,對碾壓混凝土滲透特性規律進行了總結評述。Now many scholar most and often choose the quick cl - permeability test ( astm c 1202 ) method to study the permeability of concrete
目前許多學者在研究混凝土滲透性能測試方式上最常選用的是快速氯離子滲透實驗方法( astmc1202 )和電導方法。It is an effective method for quick testing and evaluating permeability of concrete
對于快速檢測及評價混凝土滲透性是一種快速有效的方法。This paper analyses the problem of concrete cracking and leakage, and set up the model of the middle or low - strength steel slag anti - cracking and impermeable concrete ( acic ) on the base of the analysis. the four principles of water permeable resistance character, volume stability character, toughness and anti - chemical corroded character have been put forward for raw materials selection and durability design of acic, acic is designed by the theory of composite material and the theory of fiber - reinforced, and two series of acic, such as fly ash series and steel slag series, have been manufactured by means of mineral admixture, hybrid fiber and chemical admixture. hydrating heat, macro - mechanics quality, durability and microstructure of the acic have been researched
本文對中低標號大體積混凝土滲透開裂問題進行了研究,從混凝土自身結構形成與經濟角度指出大摻量粉煤灰與膨脹劑復合配製大體積混凝土的問題所在,提出採用鋼渣微細礦粉配製中低標號防滲抗裂混凝土的思路,運用復合材料理論設計中低標號防滲抗裂混凝土,提出了低水化熱、抗滲性能、體積穩定性、韌性和抗沖磨性能是中低標號防滲抗裂混凝土材料選擇和耐久性設計的主要原則,採用鋼渣微細粉復合混雜纖維、化學外加劑的技術路線,配製了適合於深水等特殊環境中的大體積中低標號鋼渣系列防滲抗裂混凝土,對其進行水化特性、宏觀物理力學性能、耐久性和微觀結構研究。The one of most important factor of affecting durabilities in construction concrete is chloride deterioration. the chloride penetration current exceeds 2, 000 coulomb in the no mineral admixtures silicate cement, using 30 % ~ 40 % fly ash it falls to 800 coulomb and the 60 % micro - slag falls to 500 coulomb ; though silica fume reduces penetration current, it deteriorates the workability of concrete
氯離子侵蝕是影響混凝土結構安全性最重要因素之一,不摻加任何礦物摻合料,氯離子滲透電量一般大於2000庫侖;粉煤灰摻量在30 40 ,滲透電量達到800庫侖;礦粉摻量在60左右,滲透電量達到500庫侖,並具有較高的綜合性能;硅灰可以改善混凝土氯離子滲透能力,但惡化了混凝土工作性。As we know, concrete structures in reality are always under various stresses or with microcracks of different width. so in this paper, compressive stress tensile stress and microcracks are introduced into water permeability and carbonation experiment, with the object to study the relationship between those factors and durability indexes. sem xrd and mip methods were also used to study the relevant mechanisms
由於實際工程中的混凝土結構均承受不同類型的荷載和帶有不同寬度的微裂縫,故本文考慮選取外荷載引起的壓應力對普通混凝土滲透性的影響,彎曲應力對砂漿、凈漿碳化深度的的影響以及在帶有裂縫狀態下水泥基材料的滲透和自愈現象開展了部分實驗研究,同時通過對混凝土、砂漿及凈漿系列水泥基試件的碳化和滲透實驗比較,從微觀角度對碳化和滲透、自愈現象的一些機理也做了初步研究。Originally from green concrete and concreting in minus - temperature, the critical strength of frozen injury of minus - temperature calcium - enriched fly ash concrete and the rule of strength development are studied in this paper. through the test of resistance of freezing - thawing cycles and chloride diffusivity, the influence of curing system and calcium - enriched fly ash on the performance of concrete are studied ; and through the modern methods ( xrd, sem, and so on ), the hydration products, pore structures and microstructure are studied
本文既著眼于綠色混凝土,又致力於混凝土的負溫施工,研究了增鈣粉煤灰混凝土的抗凍臨界強度及其負溫抗壓強度發展規律;通過快凍試驗和氯離子滲透試驗,研究養護制度和增鈣粉煤灰摻合料對混凝土耐久性能的影響;並通過光學顯微鏡法、掃描電鏡和xrd等現代分析方法,研究負溫增鈣粉煤灰混凝土的水化產物、孔結構和顯微結構。Experiment study on concrete permeability under dry - cold, dry - hot enviroment in plateau
乾熱環境下混凝土滲透性的試驗研究Because of this condition, applicability of water permeating method to evaluate impermeability of concrete is studied in this paper
正是基於這種現狀,本課題著重研究了水滲透法評價混凝土滲透性的適用性。分享友人