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- concrete strength detection by rebound method 回弹法测强
- concrete strength detecting 混凝土强度检测
- Improvement and Increase of Core-drilling Structural Concrete Strength Detection Technique 钻芯检测结构混凝土强度技术的改善与提高
- Discussion About Size Effects of Concrete Strength Detection with Small Diameter Core Samples 小直径芯样检测混凝土强度尺寸效应探讨
- The more the admixture, the lower the concrete strength. 掺量过高时,混凝土的强度降低;
- A constructive formula of ultrasonic-rebound method to test concrete strength is presented. 摘要提出一种超声回弹综合法检测混凝土强度的推定公式。
- So both theoretical analysis and test show that concrete strength can be obtained by transverse cutting method. 因此，理论分析与试验结果都表明，可以采用横劈的方法得到混凝土的强度。
- The way to influence the concrete strength is floc and arborization formed in concrete. 影响混凝土强度的方式是在混凝土中形成絮状集合体和树枝状细脉。
- The effects of volume fraction and concrete strength on tensile strength of SFRC are analyzed with an experiment. 通过试验，分析了钢纤维混凝土极限抗拉强度与钢纤维体积掺率及基体强度等级的关系。
- The accuracy of concrete strength evaluation has a great influence on the safety assessment of structures. 摘要混凝土强度评定的准确性对结构物的安全性评价具有很大的影响。
- By maintaining workability, but at a lower water content, concrete strength may be increased without the need for further cement addition. 保持工作度不变，在低用水量时，不必增加水泥用量，混凝土的强度也能增加。
- This paper studies emphatically the changes of concrete strength under different high temperatures,and the performance of aggregate after brokenness. 综述了再生骨料混凝土再生骨料特性、力学性能、耐久性、改性研究等,并提出了再生骨料混凝土的研究方向。
- It is shown from engineering practice that the deductive value of concrete strength has high accuracy by the rebound strength curve of this paper. 工程实践表明，利用本文方法建立的现场回弹测强曲线推定混凝土强度值的精度较高。
- The effect to the concrete strength and durability of different proportions of metakaolin and slag mixed with concrete was stuelied. 通过偏高岭土与矿渣的不同复掺比例研究了偏高岭土与矿渣复掺对混凝土强度和耐久性能的影响。
- Verification of concrete strength (destructive)by coring - Sample of concrete is cored cut , capped strength of the in-situ concrete. 用作证明混凝土之强度-从现声场钻孔取样板以作搞压试验，从而印证混凝土之强度。
- Based on the results of the model tests of the shaftlining structure,an empirical formula is obatined for the shaftlining concrete strength criterion. 根据井壁结构模型试验结果,得到了井壁砼强度准则的回归公式,从而为井壁结构承载能力的合理计算提供了理论基础。
- Beam bottom slab form can be dismantled after 28days or concrete strength reached 100%(make block sample in same condition), and water curing 7 days. 梁底模板必须28天或砼强度达到100%25方可拆除（做同条件砼试块测试），并浇水养护7天。
- This paper presents an integrated evaluation approach for concrete strength using Fuzzy Neural Networks(FNN) to take full advantage of the two methods. 为了充分利用这两种测强手段的特点,本文将模糊神经网络应用到混凝土强度综合评定中。
- It probes into relation among high performance fly-ash concrete strength and w/B, Sa, S/A, building relevant mathematics model to guide project practice in the future. 本文研究分析了掺粉煤灰等活性矿物掺合料、外加剂对水泥混凝土性能的影响问题，并初步探讨了掺粉煤灰高性能混凝土的强度与水胶比、砂率、净浆骨比之间的关系，建立了相关数学模型，以指导今后的工程实践；
- The different effects of the concrete strength, carbon fiber strengthening ratio and the sectional dimensions on the behavior of the concrete are discussed respectively. 分别讨论了混凝土强度等级、碳纤维布加固率、截面尺寸对碳纤维约束混凝土性能的影响。
