Roller compacted concrete
Research on Pavement Performance of RCC Applied to Base Course of Cement Concrete Pavement in High-grade Highway
With the rapid development of ecomomy, road transportation takes on the characteristics of large and heavy traffic,besides,overload phenomenon is becoming common and serious.AS a result,it is more prominent and difficult to solve the problem of the wheel track of asphalt pavement. In this case, the cement pavement is increasingly used in high-grade highways for its [...]
Research on Unprecooled Place Pouring and Crack Control Measure of Longqiao RCC Double-Curvature Arch Dam
The cracking of concrete dam will cause very serious consequences, it not only has a direct impact on the appearance and integrity of structure, but also changing the stress condition and stress state, reducing the anti-seepage, frost prevention, life, and even affecting the normal operation of the structure. There are many reasons causing cracks, while [...]
Research on the Effect of Thermal Stress Factors for RCC Dam Foudation during Long Intermittence
In RCC dam construction project, sometimes because of the need for grouting and river diversion, the thin concrete block during long intermittence would be caused after a long idle time. Then it may easily cracks and has the potential basis of progressive development through the cracks due to load rebound, strong constraint, and excavation and [...]
RCC Sensitivity Analysis on the Thermal Stress for Aggregate Linear Expansion
In the mass concrete construction the thermal stress have great influence on safety and function of construction n. The problem of thermal stress and a need for temperature control in the mass concrete construction also occur in the roller compacted concrete dams(RCCD).With the fast developing of roller compacted concrete technique in building dam, the demands [...]
Study of RCC Gravity Dam Strengthen Measures for Seismic Resistance
There has been a great improvement in seismic analysis of gravity dam by damage in the last 20 years. It was discovered that there is plastic strain during cracking, however concrete is brittle materials. As the plastic strain can’t been considered in stress-based damage model and strain-based damage model, the energy-based damage is adopted in [...]
Guan Men Yan Hydropower Station Roller Compacted Concrete Dam Construction Technology and Quality Control
Roller compacted concrete dams technology (RCC) is a new concrete construction technology, which uses stem and rigid concrete in the method of embankment dam construction by vibrating compressing. RCC breaks the traditional method of pouring concrete dam column. It has its characteristics, such as high degree of mechanization,simplified construction procedures and shorten the construction period, [...]
Experiment and Numerical Analysis for Fracture Character of RCC Crack Director
The construction technique using RCC (Roller Compacted Concrete) in dam engineering , with simple process , high intensity on the dam , short duration , low cost , adaptability , and other characteristics , has become one of the most competitive dams and has been used and developed widely in China . Integrating our RCC [...]
Experimental Research and Numerical Analysis on Dynamic Mechanical Properties of Concrete
Recently, concrete has been widely applied in the civil engineering throughout the buildings, bridges, municipal, transportation, hydraulic and other fields. Compared to the background of prosperity of engineering application of concrete, research on material properties, for example, strength criterion and constitutive relation, under multi-axis dynamic loads such as earthquakes, do not keep up with what’s [...]
Finite Element Analysis for Temperature Field and Stress Field of Mass Concrete in Construction Period
With the widely application of mass concrete structure in modem engineering, temperature field and stress field has become one of the research focuses in the structure calculation of mass concrete. Owing to the distribution complexities and the many influential factors of temperature field and stress field of mass concrete, it is impossible to get its [...]