chemistry of concrete 中文意思是什麼

chemistry of concrete 解釋
混凝土化學
  • chemistry : n. 1. 化學。2. 物質的組成和化學性質；化學作用[現象]。3. 〈比喻〉神秘的變化（過程）。
  • of : OF ＝Old French 古法語。
  • concrete : adj 1 具體的，有形的；實在的，實際的。2 固結成的，混凝土製的。3 圖案詩歌的（參閱concrete poetry）...
  1. It is expectative because of both its eminent performance and simple construction technology, and its economical preponderance. through the test of the six fibers and three gradations, the asphalt mixture of different combination, this paper analyses the fibers influence on the pavement performance, expatiates the strengthening mechanism of the fiber asphalt concrete pavement with theory of composite material and the interfacial chemistry

    本文通過六種纖維和三種礦料級配的瀝青混合料大量室內試驗研究，全面分析了纖維對瀝青混合料路用性能的影響，結合復合材料理論和界面化學知識，較系統的闡述了纖維對瀝青混合料路用性能的改善作用機理。
  2. We research the causes of concrete cracking, develop the high performance anti - cracking additive, optimize the concrete mix and construction techniques, increase the stability of concrete volume by shrinkage compensation, enhance splitting tensile strength, and can meet demand of high workability of fresh concrete. in the study, a thorough investigation of this problem is made from all points of view, with the aid of various modern measurement & testing technology and different theories & methods in surface physical chemistry, structural chemistry, solid - state chemistry, composite materials, fracture mechanics, etc. our research results have shown that the various shrinkage of concrete cause concrete cracking in building engineering, such as autogenous shrinkage, dry shrinkage, temperature shrinkage, plastic shrinkage, carbonized shrinkage, etc

    目前，解決混凝土開裂的方法是綜合的，我們調查研究了混凝土開裂的原因，開發研製了高性能抗裂外加劑，優化混凝土的設計和施工方法，並通過補償收縮達到混凝土體積穩定，提高抗裂強度，滿足混凝土拌和物高工作性能的要求。本研究採用多種測試技術，應用表面物理化學、結構化學、固體化學、復合材料學、斷裂力學等多學科的理論與方法，從不同的角度進行深入的研究和探討。通過調查研究建築工程中出現的混凝土開裂、滲漏問題，發現混凝土在非荷載作用下開裂主要是由混凝土的自收縮、乾燥收縮、溫度收縮、塑性收縮、碳化收縮等各種收縮變形引起的。
  3. 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。
  4. 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。
  5. Based on the constructivism theory, following the suggestions and requests in the fully time compulsory education curriculum standards of chemistry ( experiment draft ), this thesis makes it clear that the experimental inquiry and the investigating inquiry are the main approaches in the inquiry learning activities. after analyzing these two approaches in detail, the author proposes some concrete learning in scientific inquiry activities according to the characteristics of these two inquiry approaches. they are inquiry experiments, observation, designing the experiment, deducing, differentiating and measuring which are based on the experiments ; visiting, reading, collecting materials, asking and investigation which are based on the investigation

    本文主要以建構主義理論為依據，以《標準》中對探究學習活動的建議和要求出發，明確了實驗探究和調查探究是開展探究學習活動的主要方式，以及兩種探究學習方式的特點；並深入分析了實驗探究和調查探究，提出了化學教學中具體的探究學習方式，分別為以實驗為基礎的探究實驗、觀察、設計實驗、推斷、鑒別、測定和以調查為基礎的參觀、查閱、收集及調查，使化學教學中對學生進行探究學習培養具有針對性。
  6. In this paper, on the foundation of synthesizing engineering practice and study result of planted bar technique by chemistry glue on the domestic and international, embedded experiment study and theories analysis are done about bonded anchor behavior of chemistry planted bar anchorage behavior in this paper, the experimental results of 32 pulling resistance test ( meiya z3530 ) are given, considering some factors to affect bonded anchor behavior of chemistry planted bar such as the strength of concrete anchorage lengths diameter of steel bar and holes thickness of the protecting layer confecting circumstance of the hoop bar and quantity of construction especially which is very easy to be neglected and so on, and bonded anchor mechanism failure mode load carrying capacity and slide behavior are analyzed in - depth

    本文在綜合國內外化學膠植筋技術的工程實踐和研究成果的基礎上，對化學植筋的粘結錨固性能作了較深入的試驗研究和理論分析。文中通過32個化學膠（美亞z3530 ）植筋試件的拉拔試驗研究，考慮混凝土強度、錨固長度、鋼筋植筋、鉆孔孔徑、保護層厚度、箍筋配製情況及施工質量等因素對植筋粘結性能的影響，特別是植筋的施工質量對粘結性能的影響是比較容易被忽視的因素，對化學植筋的粘結錨固機理、破壞形態、承載力及滑移性能作了比較深入的剖析。
  7. Several questions about the compatibility of superplasticizer with cement for ready - mixed concrete are discussed from the standpoint of cement chemistry

    從水泥化學角度討論了預拌混凝土用的水泥與超塑化劑相適應性的幾個問題。
  8. The purpose of studying the middle school chemistry learning ability is to comprehend the characteristics, establish a thorough, logica, concrete and feastible goal of capacity cultivation, train and develop the students " intelligent operation and ways, set up a suitable capacity measure and evaluation mechanism

    研究中學化學學習能力的目的在於了解其特徵，確立全面、合理、具體可行的能力培養目標，訓練和發展學生的智能操作及方式，構建恰當的能力測量與評價機制。
  9. Impermeable wall interdicts or weakens waterpower contact of seepage intercomplementarity between groundwater inside dike and river outside dike. especially, mass continuous concrete wall may have made effect on groundwater power field, chemistry field and water resource

    同時由於防滲墻阻斷或減弱了堤內地下水與堤外江水滲流互補的水力聯系，特別是建設大規模連續防滲墻可能對地下水動力場、水化學場以及地下水資源等產生影響。
  10. Combining scientific research methods with personal experiences, absorbing the research achievement of experts from home and abroad, using the experience and theory of western countries for reference, this paper analyzes the problem in the affective intercourse between teacher and student in the classroom chemistry teaching and give some suggestions to improve the efficiency of chemical teaching efforts are made to render it initial or progressive in the following aspects : ( 1 ) this paper tries to analyze the characters and principals of the affective intercourse between teacher and student in chemical teaching, the demands on teachers, and gives the new way to research on it. ( 2 ) by experimental research, this paper proposes the tactics and concrete methods of the affective intercourse between teacher and student in the classroom chemistry teaching. ( 3 ) i initiatively apply experimental research in chemical teaching, use many kinds of educational statistics and reveal the importance of the emotional communication in chemical teaching to the development of students

    本文在結合自身工作實踐的基礎上，吸收了國內外專家學者的研究成果，分析了目前化學課堂教學中情感交流方面存在的問題，並研究提出了相應的對策，力求在以下幾個方面有所創新和發展： （ 1 ）系統地探討了化學課堂教學中師生情感交流的特點、原則和對教師的要求，為化學學科情感交流的深入研究提出了新的思路。 （ 2 ）通過對課堂實施情感交流的實驗研究，提出了化學課堂情感交流的策略和具體方法，為如何開展課堂情感交流實踐研究提出了新的途徑。 （ 3 ）開創性地把情感交流的實驗研究引入課堂，並利用教育統計的方法進行定量分析，得出了課堂實施情感交流對學生學習效率和自身發展的積極影響。
  11. Thus the implementation of cooperative learning of chemistry teaching in middle school is the concrete incarnation of the full - scale development in the over - all education, the principle of principal part, the law of development, and cooperation

    所以在中學化學教學中運用合作學習策略，是落實素質教育全面性、主體性、發展性和合作性的具體表現。
  12. This paper used the reactive powder concrete ( rpc ) as the inorganic anchoring material, and studied this material ’ s compositions and the materials mechanics properties ( mainly includes compressive strength, shearing strength, elasticity coefficient and poisson ' s ratio ), and also studied the contraction, durability ( including the rpc permeability, chemistry corrosiveness and anti - frozen performance ) and the heat - resistance of rpc

    本文採用活性粉末混凝土（ rpc ）為無機錨固材料，並對該材料的配合比，材料力學性能（主要包括抗壓強度，抗剪強度，彈性模量和泊松比）進行研究，還分析了rpc的收縮性、耐久性能（包括rpc的滲透性、化學侵蝕性和抗凍性能）和耐高溫性能。
  13. We only discuss the normal students who fail to study in a concrete subject like chemistry and we only discuss the studying strategy factors which cause them fail. in the practice of chemistry teaching in senior high school, we investigate the students who are difficult to study on studying strategy, and analyze which factors cause them fail to study. the investigative paper and some questions for senior high school students who fail to study are designed to investigate their studying situations

    在高中化學教學實踐中，對學習困難學生進行學習策略調查，分析哪些學習策略因素導致這些學生的學習困難筆者設計了「高中學生化學學習情況調查問卷」 ，在所教學的班級中選擇化學學局中化學學習困難學生有效學習策略研究習困難學生對其學習策略進行問卷調查，分析導致這些學生化學學習困難的基本學習策略因素、外部學習策略因素、自我調控策略因素。
  14. This paper which is based on these facts that in qinhuangdao the surface layer of cement concrete pavements have been loosed and destroyed because of snowfall and splashing salt in winter analyzed the causes deeply. the causes include physics factors, chemistry factors and construction factors that are caused by defects of our conventional construction

    本文根據秦皇島市水泥混凝土路面由於冬季降雪、噴灑除冰鹽而引起的表層鬆散破壞的現狀，從物理、化學及傳統的施工工藝不足等因素，進行了理論分析，以此來確定水泥混凝土路面表層鬆散是否需要補強或功能性養護。
  15. Based on the theories of chemistry and ahsking structure, the corrosion and damage mechanism of externally prestressed tendons was addressed and the impact of vibration frequency of externally prestressed tendons on normal use of concrete beams was analyzed

    摘要運用化學及結構振動原理，闡述了體外預應力筋腐蝕破壞機理，分析了體外預應力筋振動頻率對梁正常使用的影響。
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