混凝土齡期 的英文怎麼說

中文拼音 [húnníngtǔlíngqī]
混凝土齡期 英文
age 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
  • 齡 : 名1. （歲數） age; years 2. （年限） length of time; duration 3. （某些生物體發育過程中不同的階段） instar
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 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...
  1. The calculation modes of the coefficient of shrinkage and creep of the bulgy core concrete in steel tube are discussed. based on a few reasonable hypotheses and the stress - strain relation of concrete acquired by the " adjusting valid modulus depending on load time " method, a compact formula is reasoned out, which is applied to calculate the equivalent elastic modulus of the bulgy core concrete considering the affection of shrinkage and creep. so, the analysis of the affection on cfst arch bridge by shrinkage and creep can be progressed by pole - girder fem, further more, the analysis precision is quite high

    本文還對核心膨脹混凝土特殊的收縮、徐變系數計算模式展開了探討，在合理的假設前提下，採用「齡期調整的有效模量法」得到的混凝土的本構關系，推導出鋼管內核心混凝土在考慮徐變影響后的等效彈性模量計算公式，並以此為基礎採用桿系有限元方法來對鋼管混凝土拱橋進行較高精度的收縮徐變分析。
  2. Segments may be precast long enough to reach sufficient strength and maturity.

    塊件可以在很早就進行預制，以便使塊件混凝土達到足夠的強度和齡期。
  3. 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。
  4. Analysis and forecast of concrete structure cracking at arly age

    混凝土結構早齡期開裂的分析與預測
  5. In computation the effect of thermal insulation, elastic modulus, creep degree and autogenous volume change along with age, the progress of pouring by layer, work suspension in summer, the change of air temperature, heat preservation, water cooling, and water storage, by stages on temperature field are considered

    計算中考慮了混凝土的絕熱溫升、彈性模量、徐變度和自生體積變形隨齡期的變化以及分層澆築、夏季停工、外界氣溫變化、表面保溫、通水冷卻及分期蓄水等因素對壩體溫度應力場的影響。
  6. This paper establishes a model simulating dam actual placing process and considering the non - continuity of initial temperature on the boundary of new and old concrete, daily air temperature change, concrete - placing temperature, hydration heat, heat insulation on boundary, water - storing process, placing intermission and curing with water. the calculation of stress field considers the concrete weight, static water pressure, thermal stress, different autogenous volume change between rcc and normal concrete, change of elastic modulus of concrete with age and creep action

    考慮了乞今最為全面的初始條件和邊界條件，包括模擬壩體的實際升程過程，考慮了新老混凝土接觸面上的初始溫度不連續，逐日的氣溫變化，混凝土的入倉溫度，水化熱溫升，邊界保溫，水庫蓄水過程，澆築間歇以及灑水養生等因素；應力場的計算考慮了混凝土的自重，靜水壓力，溫度應力，常態混凝土與碾壓混凝土不同的自生體積變形，混凝土的彈性模量隨齡期的變化以及徐變的作用。
  7. The long - term property of steel fiber self - stressing concrete is studied. the results indicate that this material has a good long - term stability. the expansive deformation of 5 years is equal to 90 days, which eliminat

    研究表明，鋼纖維自應力混凝土的長期性能是可以保證的，其五年齡期時的變形與三個月齡期變形相當。
  8. The change of adiabatic temperature rise along with age and the effect on temperature field of dam body made by pouring lift by lift, work suspension in summer and water storage are considered in the analysis

    分析中考慮了混凝土的絕熱溫升隨齡期的變化和分層澆築、夏季停工及蓄水對壩體溫度場的影響。
  9. Test results show that the steel fiber in concrete have more effectiveness on improving the splitting tensile strength and the flexural strength in the early age than after its hardening ; the flexural modulus of elasticity of sfrc are higher than the plain concrete at different ages while their compressive modulus of elasticity are almost the same. it ' s also shown that, similar to the plain concrete, the early - age loading decreases the strengths of sfrc, but, with the increase of the contents of the steel fiber things are getting better, especially for the splitting tensile strength and the flexural strength

    試驗結果表明：與性能穩定之後相比，在混凝土中摻入鋼纖維對它的早期劈裂抗拉強度和抗折強度有尤為顯著的提高作用；對各齡期的受壓彈性模量影響不大，而對提高抗折彈性模量有一定的效果；與素混凝土試件相同，在早期（強度達到28天強度的85前）對鋼纖維混凝土試件施加荷載會對它的各種強度產生一定的不利影響，但是摻入鋼纖維可以減輕這種不利影響，尤其對劈裂抗拉強度和抗折強度作用突出，並且含纖率越高，效果越明顯。
  10. On the other hand, through inhibted performances of concrete and mortar, the permeability refutations with different w / c, ages, admixture, and physics chemistry absorb regulation of different viscosity permeable liquid, the liquid - gas method is proved science and accuracy. because adopting with liquid - gas method it case clearer concrete permeability regulation. different concretes relativity is more exact and more efficiency and fixed quantity

    另一方面，我們利用混凝土所固有的性質：不同水灰比混凝土、砂漿、抗滲性能規律；不同齡期混凝土的抗滲規律；不同外加劑、摻合料抗滲性能之間相互對比規律；不同黏度滲透液物理化學吸附對測試結果影響的規律；用規律來映證溶液氣壓法的科學性，準確性。
  11. Establishment of local curve for ground slag concrete strength by rebound method

    早齡期磨細礦渣混凝土回彈法專用測強曲線的建立
  12. When the amount of powder is same, the finer the powder, the less the ratio of linear contraction ; at the same hydration, different fines of particle results in the different linear contraction regulation. in initial hydration, the ratio grows with the fines ; the less fines the fewer ratios. after that linear contraction of hpc gradually gets to the balance

    高鈦礦渣的加入明顯降低混凝土的線收縮率，摻量相同時，礦渣細度的越細，高鈦渣混凝土線收縮率越小；相同齡期時，摻不同細度高鈦礦渣混凝土收縮28天內，高鈦礦渣混凝土收縮率與高鈦礦渣的細度幾乎成比例的增長，而後期收縮線比較平，說明後期的收縮基本達到平衡。
  13. Under different sand ratio, the relationship between water cement ratio and 28 day compressive strength is researched and the coefficient of recycled concrete is induced

    在不同砂率下，分析了再生混凝土28天齡期抗壓強度與水灰比之間的關系，並回歸分析得出了再生骨料系數。
  14. Based on theoretical analysis and computational model, a three - dimension numerical simulation software 3c3d ( concrete cracking control 3d ) was finished in which finite element and finite difference method were both hired. compared with the known data, good agreement proved it reliable and practicable. finally, by means of the software, with variant of environmental temperature and relative humidity and different curing conditions, the variety regulation of temperature and humidity and the stress due to them within concrete were analyzed

    然後針對收縮開裂的本質因素即混凝土內部的溫度梯度和濕度梯度，進一步從理論上分析了高強高性能混凝土早期溫濕度場隨齡期發展的分佈情況，分析溫濕度變化與收縮變形的關系，建立了相應的計算模型，並且採用有限元和有限差分方法編制三維模擬系統軟體3c3d （ concretecrackingcontrol3d ） ，通過與已知數據的對比分析，驗證了該模型的可靠性和實用性。
  15. According to the concrete ages of different grout compartments, the concrete temperature rising process and the arching temperatures etc., aiming at the optimization of technology and economy, the paper studies systematically the feasibility of applying different temperature control measures in different seasons and at different elevations ; and obtains characteristic parameters of arch dam temperature fields and stress fields so as to provide a basis for construction units to implement second stage cooling or third stage cooling according to particular demand at that time

    為了達到技術上與經濟上雙優的目的，根據不同灌漿區的混凝土齡欺、混凝土溫升過程、封拱溫度等，系統研究了在不同季節里、在不同高程上採取不同溫控措施的可行性，得到了拱壩溫度場與應力場的特徵參數，為施工單位根據當時的特定需要，進行二期冷卻或三期冷卻提供了依據。
  16. Age of concrete

    混凝土齡期
  17. The results showed that the influences of concrete strength on the soil and lining were not great, there was rational and economical thickness of the lining, and the age of concrete had large effect on axial force of lining

    研究表明：混凝土強度提高對圍巖和襯砌結構影響不大；存在一個「合理經濟」的襯砌厚度；模擬計算中是否考慮混凝土齡期對襯砌軸力影響較大。
  18. In order to reduce the calculation scale of the simulation, three dimension finite element relocating mesh model, which is controlled by the age of concrete, is presented. it " s rationality is argued theoretically. through the comparison by the fixed mesh method, it can be concluded that this model is effective, the precision can be assured and the amount of the calculation is reduced

    為了降低模擬計算的規模，本文提出了以混凝土齡期為判斷條件來控制網格浮動的三維有限元網格浮動計算模型，並從理論上分析論證了該模型的合理性，通過與固定網格法計算結果對比得出：該模型是可行的，並且在保證計算精度的前提下大大減小了工作量。
  19. 4. the study on pore structure shows that the incremental pore size of hbc concrete ( 3d, 7d ) is relatively larger, approximately equivalent at 28d, but smaller at 90d and180d compared with opc concrete. the harmful pore of both hbc and opc concrete decreases sharply but little harmful and harmless pores increase greatly, especially the harmless pore whose pore size is less than 20nm for hbc concrete increases much more than opc concrete, which can explain why hbc concrete possesses excellent long term properties

    孔結構研究表明：和opc混凝土相比， hbc混凝土早期（ 3d 、 7d ）最可幾孔徑較大，但隨著齡期的增加，其後期最可幾孔徑大幅度下降， 90d 、 180d時則小於opc混凝土的最可幾孔徑；隨著齡期的增加， hbc和opc混凝土的多害孔急劇減少，而少害孔和無害孔則大幅度增加，其中尤以hbc混凝土其孔徑小於20nm的無害孔較opc混凝土增加最多，這是hbc混凝土後期諸項性能優良的主要原因之一。
  20. 2. the research results indicate that the physical mechanical properties of hbc concrete such as compressive strength, flexural strength, splitting tensile strength, elasticity modulus and etc. is equivalent to that of opc concrete at age of 28d and remarkably surpasses opc concrete at 90d though its early age strength ( 3d, 7d ) is relatively lower. moreover, the relation of w / c ratio of hbc with compressive strength as well as strength at 7d with 28d ( c50 - c80 ) has been established and the effect of the dosage and type of fly ash on compressive strength of hbc has also been studied

    研究了高貝利特水泥高性能混凝土的抗壓、抗折、劈拉、彈性模量等一系列物理力學性能，結果表明，和opc混凝土相比， hbc混凝土早期（ 3d 、 7d ）抗壓強度、抗折強度、劈拉強度、彈性模量較低，但隨著齡期的增加， hbc混凝土28d諸項強度基本與之持平， 90d則全面超過opc混凝土；探討了高貝利特水泥高性能混凝土水膠比與28d抗壓強度的關系以及c50 c80強度范圍內高貝利特水泥高性能混凝土7d強度與28d強度的關系；此外，對粉煤灰摻量及品種對高貝利特水泥高性能混凝土抗壓強度的影響也進行了研究。
分享友人
分享到 Line

分享到臉書