mix of concrete 中文意思是什麼
mix of concrete
解釋
混凝土拌和料-
Shotcrete - rock bolt support and concrete lining are important parts of timbering structures in modern tunnel construction, and there are also essentials for natm. the intensity difference of concrete is big because of the big randomicity at the aspects of material, metage of additive, mix round, ratio of water and lime, spray construct and water maintain
由於噴射混凝土和二次襯砌在拌和料、外加速凝劑的稱量、拌勻以及水灰比的配比、在噴射作業及灑水養護上都存在著很大的隨機性，其強度的差異也較大。 -
In macroscopic aspect, it is taken as an example about how to model the relationship between the mix proportion of raw materials and the compressive strength of concrete using radial basis function ( rbf ) neural networks, which can achieve a global minimum
宏觀上，以混凝土強度為例，研究如何利用神經網路建立原材料配方與混凝土強度的關系模型。介紹可以全局收斂的徑向基函數（ radialbasisfunction ， rbf ）神經網路。 -
The major performances of concrete and mortars, which are mixed with different quantities of expansion admixtures under the same mix proportions, are studied systematically and deeply in this work. sulphoaluminate mixed with a type of new expanding component by use of the composite methods are studied in the laboratory, and some achievements have been obtained. the service conditions, the characteristics and the shortcomings of expansion admixture in the concrete engineering are analyzed and summarized based on literatures, and the expanding mechanism of concrete is discussed
本文試圖從膨脹劑不同摻量研究其對混凝土和砂漿主要性能的影響，進行了一系列宏觀力學性能試驗研究；利用差熱分析（ dta ） 、掃描電子顯微鏡（ sem ）等分析手段對鈣礬石等水化產物的結晶和生成量、形貌特徵進行微觀分析；並採用復合方法摻加新型膨脹組分對硫鋁酸鹽類膨脹劑（ uea ）進行了改性試驗研究，根據多因素模糊綜合評價方法就各類膨脹劑的主要性能進行綜合評價，得出摻加新型膨脹組分pt的膨脹劑性能較優，取得了明顯的效果。 -
In a situation that various kinds of concrete material, admixture and match ratio certainly, in order to be up to various kinds of even distribution which make up the material, form good inside micro organization and structure, vibration is it as concrete making lawing of filling a prescription basic, play an extremely important role to mix
在混凝土各種組成材料、外加劑和配合比一定的情況下，為了達到各種組成材料的均勻分佈，形成良好的內部微觀組織和結構，振動攪拌作為混凝土基本的制配方法，起著極為重要的作用。 -
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。 -
But some problems with self - compacting concrete such as high slump loss and the difficulty of harmonizing the cohesiveness and the flowability should be solved. the theory of concrete mix design should also be perfected. in accordance with these problems, this thesis carry out such research works as follows to deal with them
然而，免振搗混凝土特別是高強超高強免振搗混凝土坍落度損失大，粘聚性和流動性難以統一以及易產生收縮裂紋的問題亟待解決；免振搗混凝土的配比設計理論也需要進一步地加以完善。 -
Concerning with the practical condition of commercial concrete station in shandong province, and mainly taking the slag concrete as the study object, which is used over the whole country at present, the paper conducts the design of mix ratio of concrete by orthogonal test
結合山東省內商品混凝土攪拌站的實際情況，主要以礦渣混凝土為研究時象，通過正交試驗的方式，對礦渣凝土的配合比進行設計。 -
A couple of soldiers mix cement on the street, lifting it up by a backhoe to their colleagues who use it as mortar, placing concrete block on top of concrete block
幾名士兵在街道上混合水泥，用鋤鏟機舉升給同袍們用作砂漿，一層層地累砌混凝土砌塊。 -
This formula used inverse regression and data fusion technical and maximum likelihood theory, then this method enabled random sample value obtained in ultrasonic and rebound method of different detection population to mix together effectively, and reach estimation of concrete strength
該公式利用逆回歸理論、數據融合技術和最大似然原理，將回彈值和聲速值分別看作被解釋變量，將來自超聲法和回彈法不同量綱的檢測數據進行有效融合，得出混凝土強度的推定值，該推定結果具有無偏性和方差最小性質。 -
With reference to the 3rd jianghan bridge in wuhan, qingganhe river bridge in zigui, hubei and meixihe river bridge in fengjie, this paper describes the design requirements for mix proportioning of pumped concrete for arch bridges of concrete - filled steel pipes, selection of all kinds of materials, compatibility tests and determination of both laboratory and construction mix proportioning
摘要以武漢江漢三橋、湖北秭歸青干河大橋、奉節梅溪河大橋為例，介紹鋼管拱泵送混凝土配合比的設計要求，各種原材料的選擇及相容性試驗，試驗室配合比和施工配合比的確定。 -
This text, we mainly do experiments on the base of the truth that expansive agent control splitting. first, fixing on the dosage of expansive agent, then we mix the polymer or polypropylene fiber re into expansive agent in order to improve the anti - cracking performance and the anti - infiltrate of concrete. through the comparison and analysis of result that are tested, we choose a kind of relatively excellent anti - crack material proportion ? gt anti - crack material
為了更好地解決混凝土開裂，提高混凝土的抗裂能力，本課題以混凝土膨脹劑補償收縮抗裂的原理為基礎，選定csa膨脹劑摻量情況下，再摻加聚丙烯纖維和聚合物a ，通過復合摻加抗裂組分來達到增強混凝土的抗裂性能，提高抗滲性能，並通過比較和分析，選擇了綜合性能較優的復合摻加抗裂組分的配比方案? gt新型抗裂劑。 -
Design of concrete mix
混凝土配合設計 -
Measures for further developing concrete mix design were presented based on above work. for example, adopts pfca as an index in designing durability of concrete, uses mortar slump flow test to select cements and water - reducers and to measure saturation dosage of water - reducer in mortar and then determine optimum dosage of it in concrete, uses bar - slump test to determine stability and fluidity of fresh concrete, and consequently, the workability of high fluidity and high stability concrete such as pumped or self - compacting concrete can be designed by adopting proper cfvm determined in terms of rheological properties of designed mortar measured with cone - based rheometer
如採用粗集料破碎率作為耐久性設計的一個指標；採用砂漿坍落擴展度試驗選擇水泥和減水劑，確定砂漿中減水劑的飽和摻量，並通過上述數學模計算混凝土中減水劑的飽和摻量，以此為參照確定最佳摻量；採用障礙坍落度試驗確混凝土的穩定性和流動性，結合由漏斗式砂漿流變儀測定的砂漿流變性能確定合理的砂漿填充系數，從而實現對高流動性高穩定性要求的混凝土（如泵送和免振自密實等）的工作性設計。 -
In this article, high performance concrete applied to some thin wall pilla structure was worked out successfully in the west of china with big temperature gap by a large number of experiments, in order to improve cracking resistence and optimize mix of concrete, which will be helpful in improving concrete construction
通過大量試驗，以混凝土抗裂性能為評價指標，優化混凝土配合比組成，成功配製出了適用於西部大溫差地區某橋梁薄壁墩結構的高性能混凝土，為混凝土施工提供了有力的保障。 -
Self - compacting light aggregate high performance concrete ( abbreviated sclc ) is a new type of hpc with the dry apparent density of less than 1950 kg / m3, which can be made by replacing ordinary aggregete with light aggregate and adopting a new design of concrete mix on the basis of ordinary self - compacting concrete
自密實輕骨料高性能混凝土（ sclc ）是在普通自密實混凝土的基礎上，用輕骨料代替普通骨料，採用一定配合比技術配製而成的一種干表觀密度小於1950kg m ~ 3的新型高性能混凝土。 -
Study on optimization design method for mix of impervious structure of pouring asphalt concrete
土石壩瀝青防滲技術的應用和發展 -
According to the viewpoint of prof. f. h. wittmann and the development trend of concrete science, the author has successfully combined the theory of fuzzy cluster analysis with the quality control work of rmc production by mathematical modeling, hi actual work, there are some differences of concrete mix proportion and concrete performance index between the standard sample that is accord with all demands of hpc and differential sample that is mainly accord with demands of mix design by comparing and clustering. therefore, rmc is up to the standard of hpc after adjusting these differences
本文正是基於上述指導思想和混凝土材料科學的發展趨勢，把模糊聚類的分析理論和混凝土質量控制工作中存在的問題，通過建立數學模型將二者有效地結合起來，其目的及意義是：在實際工作中，將基本符合設計要求的若干組混凝土配合比數據、性能指標數據，與經過工程實際檢驗、符合高性能混凝土各項指標要求的混凝土進行比較、歸類，找出差異，調整參數，實現混凝土生產的高性能化。 -
Characteristics of hot mix asphalt concrete to be considered in design
熱拌瀝青混合料在設計與施工中應考慮的特性 -
It includes the selection of raw materials, mix proportion design of concrete, test method and procedure, as well as test result
但是，高強度大摻量粉煤灰混凝土的研製存在難題。 -
The outcome of this paper can be used in determining the effect of water reducer, and lays the foundation for the prediction of concrete slump and the mix proportion design of higher volume - stability concrete
該關系可用於高效減水劑減水率的測定，同時也可為混凝土坍落度的預測及高體積穩定性混凝土配合比設計方法的研究奠定基礎。
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