Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.
其次,进行了陶粒粉煤灰混凝土、粘性土、风积砂、砂砾和石灰土等几种材料的台背回填离心模型试验。
Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete.
粉煤灰对高贝利特水泥和混凝土的工作性、强度及水化热的影响。
This paper introduces the mix proportion of high fly ash content concrete instead of 30% cement with fly ash and some experiment results of the test examples in laboratory.
介绍了在水泥混凝土中,采用粉煤灰替代30 %水泥的高掺量粉煤灰混凝土的配合比设计,以及试件力学性能的室内实验结果。
Based on analyzing the eruption and tiny aggregate effect of fly ash, the influence of fly ash on the shrinkage fissure of concrete is studied, caused by the plastic deformation, dry or temperature.
以粉煤灰的火山灰效应、微集料效应分析为基础,分析研究了粉煤灰对混凝土塑性收缩、干缩、自缩和温度收缩裂缝的影响。
In this paper the usability of a quarry dust limestone powder in concrete applications substituted for fly ash as mineral admixture is investigated.
为了有效利用石粉资源,本文对石灰岩石粉代替粉煤灰作混凝土矿物掺合料的可用性进行了研究。
The paper also presents some constructive opinions for research and use of fly ash concrete.
本文还对大掺量粉煤灰砼的研究及应用提出了一些建设性意见。
The dry density, bending strength and compressive strength of foam concrete block increased with the increasing of the amount of fly ash.
粉煤灰加入量增加,泡沫混凝土砌块的干密度递增,抗折和抗压强度增大。
The research of this paper is significant for the further development and application of fly ash in self-compacting concrete.
本文的研究成果对粉煤灰在自密实混凝土中的应用有着深远的意义。
Activator can enhance remarkably the activity of fly ash and accelerate secondary hydration reaction of high fly ash content concrete.
激发剂能显著提高粉煤灰的活性,加速高掺量粉煤灰二次水化反应。
Study results show that sintered fly ash aggregate concrete is relatively high in strength and more economical in use, and its dry density and thermal properties can meet design requirements.
结果表明,用粉煤灰陶粒所配制的轻集料混凝土强度较高,干表现密度和热性能均能满足设计要求,而且更经济。
The effects of the contents of foam, fly ash, lime and plaster on the properties of foam concrete block were investigated.
研究了泡沫加入量、粉煤灰和石灰石膏对泡沫混凝土性能的影响。
The secondary hydration of high fly ash content concrete is slow at the early period and then the velocity of it gradually increase.
高掺量粉煤灰混凝土早期二次水化较为缓慢,随后二次速度逐渐加快。
Clusters model of fly ash concrete creep gives rational mechanism explanation of fly ash concrete creep, providing a new choice for the fly ash concrete creep prediction.
粉煤灰混凝土徐变的簇模型对粉煤灰混凝土徐变作出了机理性的解释,为粉煤灰混凝土徐变预测提供了一个新的选择。
Taking C30 concrete for example, analysis the durability index of common concrete and co-dope concrete, and proved the engineering application feasibility of fly ash for co-dope concrete.
本文以C 30为例,分析了粉煤灰双掺混凝土和普通混凝土耐久性指数,论证了粉煤灰双掺混凝土工程应用的可行性。
Results: indicate that addition of fly ash has great influence to concrete porosity and strength.
结果表明:掺入粉煤灰对混凝土的孔隙率及强度均有较大影响。
Through factors of the various thickness and high degree of the Polyurethane Foam to research and analyse the bond force between the Polyurethane Foam material and fly ash concrete.
通过聚氨酯硬泡的不同厚度与高度因素来对聚氨酯硬泡材料与粉煤灰混凝土之间的粘结力进行研究与分析。
In this paper, a clusters model of fly ash concrete creep was found, applying the related theories of fly ash concrete, the maturity and rheology model.
本文通过应用粉煤灰混凝土、成熟度理论和流变学的相关理论,建立了粉煤灰混凝土徐变的簇模型。
Based on the method of linear polarization, AC impedance and time potential, it is studied that the properties of seawater corrosion resistance of rebar in normal concrete and fly ash concrete.
应用线性极化法、交流阻抗法和时间电位法等电化学方法对普通混凝土和掺粉煤灰混凝土中钢筋耐海水侵蚀性能进行了研究。
Under the complex geological condition where the backfill is on thick soft clay, the design method of combining fly ash concrete pile and lime pile is presented.
针对深厚软粘土上覆新回填土的复杂地质条件,提出了粉煤灰混凝土桩与石灰桩联合进行地基处理的设计方法。
This article analyzes the causes of the lower surface strength in some practical concrete projects, discusses the influence of fly ash on the concrete surface strength.
对部分混凝土工程实例中表面强度偏低的原因进行分析,论述了粉煤灰对混凝土表面强度的影响。
The applications of high blending fly ash concrete have good economic efficiency and social efficiency.
大掺量粉煤灰混凝土的应用具有良好的经济效益和社会效益。
High blending fly ash concrete suits specially the big bulk concrete projects.
大掺量粉煤灰混凝土特别适合大体积混凝土工程。
Finally, the paper investigates how the volume content of polypropylene fibers affects the fracture parameters of high-volume fly ash concrete.
本文最后研究了聚丙烯纤维的体积含量对大掺量粉煤灰混凝土断裂参数的影响。
The fly ash slag-alkali concrete is characterized by taking one valence metallic compound as activator.
粉煤灰渣—碱混凝土的特点是以一价金属化合物为激发剂。
By comparing and introducing the effect of fly ash concrete in durability of structure, forecasts the develop prospect of fly ash concrete.
通过比较介绍煤灰砼在结构耐久性中所起的作用,展望粉煤灰砼的发展前景。
After the fly ash concrete mixing, can replace the partial cement, improve the performance of concrete can cut down engineering cost, reduce the pollution of the environment.
粉煤灰掺入混凝土后,可以取代部分水泥,改善混凝土的性能降低工程造价,减少环境污染。
This paper studied the application of fly ash on concrete sleeper with the method of ortho design.
本文采用正交设计的方法,对粉煤灰在高强预应力混凝土轨枕中的应用进行了试验研究。
This provided the theories foundation of the application of super fly ash concrete.
这为超掺粉煤灰混凝土的应用提供了理论参考。
This provided the theories foundation of the application of super fly ash concrete.
这为超掺粉煤灰混凝土的应用提供了理论参考。
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