水中混凝土 的英文怎麼說
中文拼音 [shuǐzhōnghúnníngtǔ]
水中混凝土
英文
concrete in water- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 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
- 水中 : aquatic; water水中爆炸 water shooting; 水中浮游生物 hydroplankton; 水中氣泡 underwater bubble; 水...
- 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...
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Comparative analysis of airport pavement design procedures between caac and faa
中美機場水泥混凝土道面設計方法對比分析Specially, the axial tensile strength of the interface of the new and old concrete has reached above 2. 40mpa, greatly surpassing the preconcert goal ( > 1. 0mpa ), and its flexural strength also above 5. 80mpa, having surpassed the preconcert target and the standard request ( 4. 50mpa ). ( 2 ) after hardening 4h and 8h the compressive strength of the patched concrete is bigger than 20 mpa, which can satisfy the request of fast patching. ( 3 ) the ych color material, which is mixed into rapid sulfoaluminate cement - concrete patching material, can take better effect and avoid chromatism on the appearance of new - old concrete
特別是新老混凝土界面的軸向抗拉強度已達2 . 40mpa以上,大大超過原定目標(大於1 . 0mpa ) ,其界面抗折強度也在5 . 80mpa以上,也已超過原定指標及規范要求(大於或等於4 . 50mpa ) ; ( 2 )修補混凝土硬化后4h 、 8h抗壓強度大於20mpa ,能滿足快速修補的要求; ( 3 )在快硬硫鋁酸鹽水泥混凝土修補材料中摻入自配的ych調色材料,能較好地起到調色作用,避免新老混凝土表面色差。The frequency curve of transverse distribution of the wheel track on divided ways reveals that the frazzled damage of highly channelizing expressway cement concrete pavement largely occurs in the peak range of distribution curve of the wheel track
摘要分車道行駛輪跡橫向分佈頻率曲線顯示,渠化程度較高的高速公路水泥混凝土路面磨損破壞主要集中在行車道輪跡峰值范圍。Technology of old cement concrete pavement broken and stable in motorway ' s heavy repair
高速公路大修工程中舊水泥混凝土路面破碎穩固技術的應用The paper is based on innumerable practical heavy - load road data, deliberate heavy - load standard in detail through theoretical arithmetic, and bring heavy - load standard about cement concrete pavement and asphalt concrete pavement separately ; in the meantime, through a large quantity of cement concrete pavement stress calculation, the paper puts forward relation expression between load on concrete board and stress level under board ; meanwhile, the paper puts forward traffic classification about cement concrete pavement and asphalt concrete pavement ; through bearing board testing on each structure sheaf the paper finds the material modulus gets modified ; through comparing position equivalent rebound modulus to theoretical equivalent rebound modulus, the paper points out limitation of nomograph in course of cement concrete pavement design, whereby, puts forward modifier formulas about theoretical equivalent modulus
本文以大量的重載道路資料為主,從實際出發,結合理論計算,對重載標準進行了詳細的討論,分別給出了水泥混凝土路面與瀝青混凝土路面的重載標準了;同時,通過大量的水泥混凝土板底應力計算,推導出了混凝土面板荷載與板底應力水平的關系式;給出了水泥混凝土路面與瀝青混凝土路面的交通分級;通過對試驗路各結構層進行承載板測試,發現現有材料模量較以前有了明顯的提高;對比現場實測的當量回彈模量與理論當量回彈模量,指出現有水泥路面設計中的諾謨圖不能完全符合現有道路材料,從而提出了對理論模量的修正公式。Application of saf stress absorbing layer in the overlaying on old cement loncrete pavement
應力吸收層在舊水泥混凝土路面加鋪中的應用According to the pavement structure dynamical analyze theory, the principle and process of the pavement modulus back - calculation have been discussed. the appliance ideas of the dynamical modulus among the pavement evaluation, the dynamical characteristic and correlative dynamical parameters of the cement concrete pavement surface, basement and subsoil have been investigated, and the contrast relationships between dynamical and static modulus of the cement concrete pavement have been established, and the evaluation standard of the structure layers " dynamical modulus of the cement concrete pavement has also been presented
根據路面結構動力分析理論,對路面模量反算的原理及實現過程進行論述,研討了動態模量在路面評價中的應用思想及水泥混凝土路面面層、基層、土基的動態特性和相關的動力參數,建立了水泥混凝土路面動態模量與靜態模量的對比關系,提出了水泥混凝土路面各結構層動態模量的評價標準。Abstract : based on the indoor test results of the base bedding course materials for cement concrete pavement and prevalent actural calculation approach of the prevalent norms, and according to the different compositions in changtan expressway and in consideration of the experiences gained in the central and southern region, a typical structure legend for cement concrete pavement which is suitable for areas damp and with plenty of rainfall the typical structure and guideline for the use of the typical structure legend are presented in this paper
文摘:通過對南方多雨地區目前常用的水泥混凝土路面基墊層材料的室內試驗,依據現行規范的結構計算方法,進行不同結構組合驗算與長潭高速公路試驗路段現場檢測,並參考中南地區使用經驗,提出了適應多雨潮濕地區水泥混凝土路面典型結構圖例,論述了運用典型結構圖例的原則及指南。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。Test method for ball penetration in freshly mixed hydraulic cement concrete
新澆水硬性水泥混凝土中球體貫入的試驗方法In this paper, the rapid repairing method using cement concrete lamina is presented, two key designing parameters are analyzed : the interfacial bonding strength of new and used concrete and the shearing stress in interface
本文闡述了水泥混凝土路面快速薄層修補的方法,研究了修補中兩個重要設計參數:新老混凝土界面抗剪粘結強度和新老混凝土粘結面剪應力,並進行了新老混凝土界面抗剪粘結強度試驗和混凝土收縮試驗。On the basis of the study of traffic features of heavy - load vehicles, the vehicle weight data and the axle - load spectrum of different vehicles were collected for some typical heavy - duty roads in china, and according to the features of heavy - loading pavement, deficiency of the former load - figure are analyzed and new figures which are suitable for heavy - load pavements are put forward. meanwhile, based on the research of the cement concrete fatigue equation and the damage mechanism of asphalt pavement under heavy - load vehicles, axle load conversion equations fitting for heavy - load cement concrete pavement and asphalt pavement are established respectively by further analysis. in addition, design indices, traffic and material parameters and structural combination for heavy - load pavements are discussed in this paper as well
本課題針對重載道路路面設計中所存在的問題,從重載交通特性出發,收集分析了國內幾條重載道路的交通及軸載組成情況,根據重載交通的特點,分析原有荷載圖式的不足,提出了適合於重載瀝青、重載水泥混凝土路面的荷載圖式;同時,在重載水泥混凝土路面疲勞方程及重載瀝青路面破壞機理研究的基礎上,通過對重載路面軸載換算公式的進一步研究,分別提出了適合於重載水泥及重載瀝青路面的軸載換算公式;此外,本文還對重載水泥、重載瀝青路面的設計指標、交通參數、材料參數及結構組合等方面進行探討,系統地提出了重載路面的設計方法,並使之有效地運用到工程實踐中。The admixture is of importance for hydraulic concrete
摻合料在大體積水工混凝土中佔有重要地位。Determination of trace chloride in cement concrete
水泥混凝土中微量氯化物的測定The results show that the damages to the appearance of concrete structures exposed to atmosphere, including honeycombing, cracking along rebar, rebar corrosion, and concrete delamination, are quite serious, that the poor quality of concrete construction, the insufficient thickness of local concrete cover, and the rebar corrosion expansion and dilatancy induced by carbonization of concrete cover are the main causes, and that the main form of damages to the overflow structure is the abrasion resulted from water scouring
結果表明,水閘的水上(大氣中)混凝土結構外觀破損十分明顯,露石露砂、順筋裂縫、鋼筋銹蝕、混凝土破損剝落等已十分嚴重;引起破壞的主要原因是混凝土施工質量較差,局部保護層厚度不足,混凝土保護層碳化引起鋼筋銹蝕脹裂,而水流沖刷磨蝕是水閘過流結構破壞的主要形式。In the view o6f micro mechanics and fracture mechanics, the mechanism of crack generation of mass concrete is expatiated, thermal stress on the interface between aggregate and cement paste of concrete and crack forming and developing is analyzed and the disciplinarian crack developing with temperature is given
本文從微觀力學和斷裂力學的角度,探討了混凝土結構開裂機理,分析了溫變過程中混凝土骨料與水泥砂漿界面上的溫度應力以及界面裂紋的萌生和擴展,給出了裂縫隨溫度變化的擴展規律。Asphalt overlay on old cement concrete pavement of boai 1st road in zhongshan
中山市博愛一路舊水泥混凝土路面瀝青罩面實踐Consequently concrete production practices are now being conducted by relying on more experiences or trial and error than related theory. so the study on the interfacial chemistry phenomena and rheological properties of the “ cement - water - superplasticizer ” system is in active demand. the systematical study on the interfacial properties and their influence factors based on the theory of colloidal science, interface chemistry, chemistry of cement and polymer science were conducted in order to establish the relationship among interfacial properties, microstructure and rheological characteristics of “ cement ? water - superplasticizer ” system, and provide the theoretical guide for the manufacture and applications of cement, concrete and superplasticizers
本文選擇「水泥-水-高效減水劑」系統的界面化學現象和流變特徵作為研究課題,旨在通過深入系統地研究水泥與高效減水劑在水介質中的一系列界面化學現象及其影響規律,利用膠體化學、界面化學、水泥化學和高分子化學的相關基礎理論,分析水泥與高效減水劑的相互作用機理,確定系統中界面化學現象、系統微觀結構和流變特性的關系,指導水泥、混凝土及外加劑的生產實踐。When the cement concrete pavement is opened to the traffic up to 3 ~ 5 years, especially when the wear resistance of the coarse aggregate is not good and the strength of the concrete pavement is not adequate, the wear in the original road surface will be more distinct in these cases. the phenomena of stripping, pit slot, surface pit, incompact and polish, filler damage and etc. usually happen in the cement concrete pavement. it will influence the traffic quality once the diseases appear in the cement concrete pavement
本論文結合東北高速黑龍江分公司項目《水泥混凝土路面白色薄層罩面技術的研究》展開工作,通過大量的試驗研究,從以往國內的修復材料,國外的同類材料中,參考道路修復材料的技術標準,路面養護維修手冊和混凝土路面修補技術要求,吸取已有材料的長處和特點,研製開發了kg水性修補材料和kg油性修補材料,通過反復測試並做正交試驗,研製出最優配方。Through the research and analysis on the three aspects concerning the base interface of the pavement panel, crack accumulation, expansion in the pavement panel and interaction between spring plates on the road surface as well as its damage on the road fatigue, it is first brought forth that the process of fissures and breakage in the cement concrete pavement can be divided into three stages, i. e. stage of initial crack formation and damage in the bottom of the pavement slab, stage of accumulation, intensifying & expansion in ruptures from load during the time of use and stage of fissures & breakage in the pavement
通過對路面板底界面開裂、路面板中裂縫積聚、擴展和路面表面車板相互作用及其對路面疲勞破壞的影響等三個層面的研究和分析,首次提出水泥混凝土路面的開裂和破壞過程可以分為三個階段,即路面板底初始損傷西南交通大學博士研究生學位論文第11頁和早期裂縫的形成階段、使用期間荷載作用對路面造成的開裂損傷累計、加劇和裂縫擴展階段以及路面斷裂破壞階段。分享友人