Impact on strength of concrete properties using Polymer (Polyester fibre) with super plasticizerRecent research aimed invention of new methods in strengthening concrete is under work for decades. Use of secondary reinforcement such as polyester, polypropylene, nylon is quite popular for various ...
This paper summarizes a series of tests on the impact strength of large concrete breakwater cubes. A simple, design-oriented, analytical model was established on the basis of the continuum damage theory in order to interpret the data collected during a rather ambitious and expensive experimental ...
Controlled impact experiments have been performed on concrete to determine dynamic material properties. The properties assessed include the high-strain-rate yield strength (Hugoniot elastic limit), and details of the inelastic dynamic stress versus strain response of the concrete. The latter features enta...
1.After theshock strengthtest analysis of the S-P hybrid fiber concrete,it gets the conclusion of directional preponderance effect by adding the hybrid fiber to concrete.在分析掺加单一纤维混凝土优缺点的基础上,以提高混凝土结构抗冲击性和耐久性为目的,提出了适量钢纤维(S)—聚丙烯纤维(P)增强混凝土的设...
Concrete is the most widely used building material in the world and consequently is being continuously developed to fulfill modern-day requirements. Efforts to improve concrete strength have led to reports of porosity-free concrete (PFC), the hardest concrete tested to date. Some of the basic prop...
Normal strength, high strength, and fibre reinforced concrete beams were tested. In general, it was found that the properties of concrete under the high stress rates associated with impact loading could not be predicted from conventional static tests. 展开 ...
The compressive strength of concrete is calculated according to the formula (9): $$\sigma =\frac{F}{{A}_{0}}$$ (9) where: \(\sigma\)—compressive strength [MPa], \(F\)—load applied [N], \({A}_{0}\)—area [mm2]. The shrinkage rate test was conducted with the use of ...
Analytical models and numerical simulation methods for penetration are summarized. Criticisms are made for the current understanding of the effects of strain rate on the unconfined uniaxial compressive strength of concrete-like materials based on measurements by the split Hopkinson pressure bar technique....
dynamic strength increase factor, modulus of elasticity and failure pattern of these RPC specimens subjected to impact load were investigated. From the tests, the strain rate sensitivity threshold value of 50 s−1was obtained. The experimental results showed that when the strain rate increased from...
Strength of a Reinforced-Concrete Commercial Object on High-Velocity Impact with a Model Projectilecomputer simulationhigh-velocity impactdestructionconcretereinforced concreteThe processes of impact interaction of model projectiles (including those carrying an explosive) with concrete, reinforced-concrete, and ...