对早龄期混凝土取芯,测出其弯拉强度,作为抗裂限值。
Drill several cores at different ages of the early age concrete, then measure its flexural strength, take this flexural strength as the anti-cracking limits.
研究表明,早龄期混凝土致裂应力主要与徐变和内外约束有关。
The results showed that the concrete cracking stress at the early age was associated with the creep and internal and external constraints directly.
将早龄期混凝土的温度应力与强度对比,以此来确定混凝土开裂规律。
Compare the temperature stress to the flexural stress which is used to obtain the cracking rules of the early age concrete.
早龄期混凝土的水化、凝结过程对混凝土的后期强度、耐久性是非常重要的。
The process of hydration and solidification of young concrete have a significant influence on the long term strength and durability of concrete.
采用有限差分方法,建立了基于混凝土绝热温升试验的早龄期混凝土温度场计算模型。
A finite difference model for predicting temperature fields in early age concrete is presented based on adiabatic test on concrete.
利用概率的方法,建立分析早龄期混凝土开裂的数学模型,并利用一实际的混凝土挡土墙工程观测结果进行验证。
A mathematic model is set up by probabilistic method for analyzing concrete crack in early age, which is tested by the observation results of a concrete retaining wall case.
利用概率的方法,确定开裂概率和临界开裂风险来评价混凝土结构的早龄期开裂的可能性大小,并在混凝土挡土墙工程中应用。
The probability of concrete structure cracking at early age is estimated by cracking probability and critical cracking risk with probabilistic method for a real case of concrete wall.
早龄期时混凝土结构内应力的计算为优化混凝土材料的组成提供了依据,尽可能减少混凝土结构的开裂。
The optimization of mix composition of concrete according the calculation of inner stress at early age may reduce the cracking risk of concrete structure.
经工程实践验证了该曲线的测试精度,建议可作为郑州市早龄期磨细矿渣混凝土回弹法的专用测强曲线。
The accuracy of the curve is tested and verified by the practical engineering, and the curve can be used as the curve for early-age ground slag concrete strength by rebound method in Zhengzhou.
固结波速在混凝土7天龄期内变化尤为显著,这弥补了现有的混凝土无损检测技术不能应用于检测早龄期(特别是7天龄期以前)混凝土强度这一空白。
The consolidating wave speed changes distinctly in 7 days, so it makes up the loss that in being non-destructive testing technology couldn't be used to test the fresh concrete strength.
通过现场试验建立了高强度混凝土早龄期力学性能的经时概率模型。
On the basis of spot sample and laboratory experiment, authors studied the time-variant probability model early age period mechanical properties of high-strength concrete.
该文研究采用振弦应变计监测混凝土结构早龄期的应力相关应变。
Study on undrained shear behavior and hyperbolic stress-strain relationship of saturated clays;
该文研究采用振弦应变计监测混凝土结构早龄期的应力相关应变。
Study on undrained shear behavior and hyperbolic stress-strain relationship of saturated clays;
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