Control of Early Cracks on Cast - in - situ Beam and Slab Construction Built with Manufactured Concrete(MC) 商品混凝土现浇梁板早期裂纹控制
In the paper, tests are carried out of manufactured sand concrete and natural sand concrete to study the effect of manufactured sand on the impervious performance of concrete. 本文通过试验测试天然砂和人工砂混凝土的抗渗性能,研究了人工砂对混凝土抗渗性能的影响;
The relationships between concrete cube compressive strength and the axial compressive strength, splitting tensile strength, modulus of elasticity were established, which provides a reference for the application of manufactured sand concrete in pre-stressed concrete bridge engineering. 3. 建立了机制砂混凝土的立方体抗压强度与轴心抗压强度、劈裂抗拉强度、弹性模量的换算关系式,为机制砂混凝土在预应力混凝土桥梁工程中的应用提供了参考依据。
The results show that under the same conditions the crack width and the deflection of manufactured sand concrete pre-stressed beams are smaller than normal concrete pre-stressed beams. 结果表明在相同条件下机制砂预应力混凝土梁的裂缝宽度和挠度小于普通混凝上预应力梁。
Strength and abrasion resistance of pavement manufactured sand cement concrete 路面机制砂水泥混凝土的强度与耐磨性研究