混凝土當量 的英文怎麼說
中文拼音 [húnníngtǔdāngliáng]
混凝土當量
英文
concrete equivalence- 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
- 當 : 當Ⅰ形容詞(相稱) equal Ⅱ動詞1 (擔任; 充當) work as; serve as; be 2 (承當; 承受) bear; accept...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 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...
-
Of all kinds village does an enterprise to should be mixed in civilian curtilage in the center ; ( should stay between 2 ) building have appropriate fire prevention span and fire prevention channel ; ( 3 ) abuts type farming curtilage every between due firewall ; ( when 4 ) builds bridal chamber house, should raise architectural fireproof grade, use the blame combustion housing materials such as ferroconcrete, brick, tile ; when decorating, reduce use bamboo, wood to wait as far as possible can burn material
各類村辦企業應混在民宅當中; ( 2 )房屋之間應留有合適的防火間距和防火通道; ( 3 )毗連式農宅每戶之間應有防火墻; ( 4 )建造新房屋時,應提高建築的耐火等級,採用鋼筋混凝土、磚、瓦等非燃燒建築材料;裝修時,盡量減少使用竹、木等可燃材料。The expansion agents can only make up the shrinkage to some extent, and the compensation effects would be reduced when the retardener and fly - ash are used. the expansion agents are not panaceas to avoid the shrinkage cracking as expansion can also reduce the concrete soundness. under bad curing condition, the polypropylene fibrillated film fiber can improve concrete ' s anti - crarking property, while the nominal steels have very unobvious effects. to reduce the concrete shrinkage thus avoid the cracking, the former factors must all be taken into account in concrete proportion design to develop sound concrete
研究結果表明,水泥的品種和用量是影響混凝土收縮值的主要因素之一,當混凝土中水泥用量超過470kg / m ~ 3時,混凝土的收縮值超過400 10 ~ ( - 6 ) ,在約束狀態下存在高開裂風險;採用細砂使混凝土單位用水量顯著提高,收縮值也大幅增加;優質粉煤灰總體上能抑制混凝土的收縮,以超量方式摻入其抑制作用更加明顯,但粉煤灰混凝土早期的粘聚性較差,應注意養護,以免失水產生龜裂;早強減水劑和緩凝減水劑都會使混凝土收縮值增加;膨脹劑只能補償混凝土部分收縮,同時受緩凝劑和粉煤灰的抑制,而且膨脹使混凝土的體積安定性增加了不確定因素,膨脹劑不是解決混凝土收縮裂縫的良方。From lots of models, this paper chooses seven models - model of mander, model of zhangxiuqin, model of sheikh, model of park, model of saatcioglu, model of fafitis and model of yuanjingen, which express the mechanics capability of confinement concrete perfectly and representatively. the paper modified some incorrect points of the models after studying them and some different hysteretic rules - hysteretic rules of park, hysteretic rules of blakeley, hysteretic rules of mander etc. were added to the models. on the base of above, the models were programmed and added in the program based on the column - beam element of the fiber model
本文從大量的約束混凝土本構模型中篩選出具有代表性的七種模型,即mander模型、張秀琴模型、 sheikh模型、 park模型、 saatcioglu模型、 fafitis模型和袁錦根模型作為考察和研究對象,對部分模型局部明顯不當的地方進行了修改,然後在各模型中添加了不同的滯回規則,包括park滯回規則、 blakeley滯回規則、 mander滯回規則、張秀琴滯回規則、袁錦根滯回規則以及本文提出的滯回規則等,使其能適用於結構地震反應動力分析。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。The foundation of concrete should be horizontal the appearance should be smooth, and which must be borne evenly the weight of transformer, the transformer is fixed on the foundationby means of press board fixed method
有關尺寸參見組合式變壓器外形圖混凝土臺基水平,表面平整,要均勻隨組合變的重量,組合變採用適當的方式固定在臺基上The concrete with the a 28 days compressive strength of c60 can be produced by using suitably pulverulent coal - fired ash, the higher the quantity of pulverlent coal - fired ash mixed in concrete with 10 % - 20 % is, the higher the strength of concrete is. then, we carry out the studies on the technics properties that reflect the comprehensive properties of concrete. we find that the separating and excreting water of the concrete can be avoided efficiently when the pulverulent coal - fired ash and superplasticizer are used suitably, the higher the quantity ration of coal - fired ash and super plasticizer are, the higher the caving degree of the concrete is
在上述研究基礎上,對摻細化粉煤灰后混凝土的強度變化規律進行了分析研究,在適當配合比及高效減水劑的作用下,摻一定數量的磨細粉煤灰,在28天齡期可以配製出抗壓強度高於c60的粉煤狄高強混凝土;當磨細粉煤灰以10 - - 20不同的摻量分別摻入粉煤灰中時,粉煤灰高強混凝土的強度隨摻量的增大,各齡期強度均逐漸降低;在摻入8硅灰+ 10粉煤灰可使高強混凝土的各齡期強度都有很大增加,當單摻8粉煤灰時,混凝土的後期強度增加較快;粉煤灰混凝土必須加入高效減水劑遼十l彬技術人學碩十學位論文後j 」能達到高強的目的。The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore
第一章回顧了孔結構在當今國內外的研究現狀,包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀,介紹了孔結構研究方面的一些最重要的成果;第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理,並討論了水泥基多孔材料孔隙分析中常用的表徵參數,也說明了壓汞法測孔對研究結果的影響因素,指出了壓汞法在孔結構研究中的局限性;第三章是著重分析了孔隙率與強度關系模型的發展歷程,並對已有的模型進行了比較分析,指出了原有模型的不足之處;第四章在「綜合集成」的基礎上,提出了混凝土孔結構復合體模型和孔系統的物理模型,並模擬了該模型下由各單體並聯形成的復合體的斷裂過程,最後根據所建模型編制了相應的計算程序,可根據輸入的孔徑分佈與水泥含量等參數,實現混凝土理論強度的計算;第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析,根據回歸分析的方法得到了反映基體強度特徵的k值,並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響,檢驗模型的正確性;第六章是結論與展望,根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。Inorganic anti - cracking reinforced chemical additive, called wj, generates some tittle expansive crystals in hydration process in concrete to reduce the porosity and improve the distribution of pore size. the expansive power is process in common to tumefaction that petty crystalloid aft suck water and pressure to concrete pores that aft crystal gather volume. its adding weight was 8 % - - 12 % in cement, its restrained expansive ratio was about 0. 02 % - - 0. 06 %, and relevantil brought self - stress 0. 2mpa ?. 6mpa
無機增強抗裂材料wj摻入普通混凝土中,在水化硬化過程中生成一定量的微膨脹結晶體,降低空隙率,改善混凝土中孔結構分佈。其膨脹驅動力是凝膠尺寸的晶體鈣礬石吸水腫脹和結晶狀鈣礬石對孔隙產生膨脹壓的共同作用。當wj摻量為8一12兒在鋼筋和鄰位的限制下,使混凝土產生0The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering
研究表明:本文研究的梁、板構件的延性比遠大於5 ;增加箍筋(鉤筋、分佈筋)含量,可以提高壓區混凝土剝落時的撓度;在適當的受壓筋、箍筋(鉤筋、分佈筋)含量下,可以忽略壓區混凝土剝落瞬間的承載力下降,從而大大提高構件的延性;受彎構件的寬高比對壓區混凝土極限應變的影響不明顯;受彎構件的裂縫間距受箍筋(鉤筋、分佈筋)的布置影響;文中所用的承載力和變形計算方法是可行的。化爆試驗表明,高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。The result shows that the compressive strength of concrete under natural variational low temperatural curing is higher than the compressive strength of concrete under permanent low temperatural curing and the pore porosity under natural variational low temperatural curing is less than the compressive strength of concrete under permanent low temperatural curing ; the compactibility of concrete is good with fa ( < 15 % ) and sf ( < 8 % )
結果當摻合料摻量相同時,自然變低溫( - 15 ~ 5 )養護條件下混凝土抗壓強度高於恆低溫( - 10 )養護條件下混凝土抗壓強度,孔隙率要低於恆低溫( - 10 )養護條件下混凝土的孔隙率;當單摻粉煤灰時摻量低於15 % 、單摻硅灰時摻量低於8 % ,低溫混凝土的密實性較好。In this paper, rebar corrosion state was judged with three electrochemical nondestructive measuring technologies, i. e. half - cell potential, a. c. impedance and time potential. when the rebar was transformed from passivation to depassivation, it can obtain the chloride ions corrosion critical content through taking and analyzing chloride ions content around the rebar
本文利用半電池電位法、交流阻抗法和時間電位法三種電化學無損檢測技術判斷評估試件在試驗過程中鋼筋腐蝕狀況,當鋼筋由鈍化狀態轉為活化狀態時,取樣分析鋼筋周圍氯離子含量,得到了不同技術條件混凝土的氯離子臨界濃度。On the contents of two sides abovementined, this paper attempts to do some initial researches from three angles as follows : 1, the analyses of anti - seismic features on longitudinal direction of the aqueduct l ) the seismic longitudinal effects are small. the vibrant characters are decided from the structure integration and rigidness of piers and main arch - ring of the aqueduct, so the following measures should be taken in order to weaken and isolate seismic influence : properly broadening the section sizes and adopting the high class concrete, lowering the height and barycenter of building, setting hoop steel bars so as to increase the plasticity of the concrete which can absorb the seismic energy and prevent the damages due to stress centralization on the linkages and changing place
本文試圖就上述的這兩大方面的內容,從以下三個角度進行了初步研究: 1 、縱槽向抗震性能分析1 )湯峪河吊桿拱支承結構的縱槽向地震效應較小;吊桿式拱架結構動力特性取決于槽墩和主拱圈的剛度,以及結構的整體性,故適當加大構件截面尺寸或提高砼標號,盡量降低結構的建築高度和重心,在構件連接和變截面處增設梗脅,按照約束混凝土的要求來加強箍筋的配置,增加砼的延性,以克服地震時構件連接和變截面處的應力集中造成的坡壞,並吸收大量的地震能量,從而起到隔震,減震的效果。The thermal crack problem of the mass concrete is very complicated, and correlative with structure, building material, construction, rock, circumstance, and so on. now, in the construction field, the research on the mass concrete used during hydraulic construction is more frequent than the others, white the research on the comparatively small mass concrete used in the normal buildings is not deep enough and comprehensive, the covering area in the related codes are limited and narrow. many problems in construction practice have to be solved by the experience, rather than by theory. this phenomenon leads to much unnecessary waste of labor, material and financial resources, also the quality is unsatisfactory
建設領域目前對水工建築中所使用的大體積混凝土(巨型混凝土結構)研究較多,而對普通建築中所使用的體積相對要小很多的大體積混凝土(相當于中體積混凝土)的研究卻還不夠深入、全面,相關的規范條文覆蓋面還不夠完善,對很多工程實踐中的問題只能依靠經驗處理,缺乏適當的理論依據,這使得在工程實踐中造成許多不必要的人力、物力、財力的浪費,大體積混凝土施工質量控制的結果也不很理想。A rod of wood, steel, or fiberglass used with a line for catching fish
當我們比較傳統的混凝土橋和玻璃纖維橋時,後者的重量是混凝土橋的五分之一。When we compare a conventional reinforced concrete bridge with fiberglass bridge a fiberglass is 5 times lighter than conventional concrete
當我們比較傳統的混凝土橋和玻璃纖維橋時,後者的重量是混凝土橋的五分之一。However, the elastic modulus of scc is not significantly affected by s / a ratio when total aggregate volume is kept constant
然而對彈性模數而言,當骨材總體積量一定時,改變混凝土含砂率對于彈性模數並沒有太大的影響。Quality of concrete depends on proper placing, finishing, and curing
混凝土的質量取決于適當的灌注、抹光和養護。The gas anti - permeability and carbonation resistance of recycled concrete, which was prepared by using waste concrete as recycled coarse aggregate ( rca ) and some cement and mineral additions as raw materials, were studied
摘要以廢棄混凝土為再生粗集料,再適當摻加一定量的水泥和礦物摻和料,製成再生混凝土。The concrete outward appearance quality is the concrete quality manifested intuitively, in view of outward appearance quality question of current bridge foot stall construction, coupled with construction practice, construction technology of steel template paste with water percolation cloth in bridge foot stall construction was proposed
摘要混凝土的外觀質量是混凝土質量的直觀體現,針對當前橋梁墩柱施工中的外觀質量問題,結合施工實踐,提出了橋梁墩柱施工中鋼模板貼透水布施工技術。It is fulfilled two actions, conveying concrete and mixing concrete. these actions not only ensure the quality of the concrete, but also make the conveying distance longer. but in the northwest area of our country, research on the field of the truck mixer is little
它兼有載運和攪拌混凝土的雙重功能,可在運送混凝土的同時對其進行攪拌或攪動,因此能在保證輸送的混凝土質量的同時適當延長運距(或運送時間) 。分享友人