| 1. | Method of test for compressive strength of concrete
混凝土抗压强度的试验方法 |
| 2. | Test methods of the concrete compressive strength of concrete pipes for water
混凝土管用混凝土抗压强度试验方法 |
| 3. | Standard test method for compressive strength of concrete cylinders cast in place in cylindrical molds
在圆柱模型中现场浇注混凝土圆柱体的抗压强度标准试验方法 |
| 4. | Studies on the quantitative relationships between compositions of blended cementitious materials and compressive strength of concrete
复合胶凝材料组成与混凝土抗压强度定量关系研究 |
| 5. | Methods of test for production control of concrete - method of rapid test for compressive strength of concrete by warm water curing
混凝土生产控制试验方法.热水养护法测定混凝土压缩强度的快速试验方法 |
| 6. | The experimental results indicate that electroosmosis technology can further the filtering velocity markedly , increase the compressive strength of concrete significantly and have finer economical efficiency
结果实验表明电渗技术可以显著提高滤水混凝土的滤水速度，明显提高混凝土的强度，并有很好的经济性。 |
| 7. | At the same time , the relationship between the sound speed traveling through the concrete and the compressive strength of concrete are analyzed , and then * relationship equations are obtained
接着，测试了混凝土宏观力学强度，同时对混凝土超声波传播速度检测值和抗压强度测试值进行回归分析，给出它们之间的关系方程式。 |
| 8. | In macroscopic aspect , it is taken as an example about how to model the relationship between the mix proportion of raw materials and the compressive strength of concrete using radial basis function ( rbf ) neural networks , which can achieve a global minimum
宏观上，以混凝土强度为例，研究如何利用神经网络建立原材料配方与混凝土强度的关系模型。介绍可以全局收敛的径向基函数( radialbasisfunction ， rbf )神经网络。 |
| 9. | The result shows that the compressive strength of concrete under natural variational low temperatural curing is higher than the compressive strength of concrete under permanent low temperatural curing and the pore porosity under natural variational low temperatural curing is less than the compressive strength of concrete under permanent low temperatural curing ; the compactibility of concrete is good with fa ( < 15 % ) and sf ( < 8 % )
结果当掺合料掺量相同时，自然变低温( - 15 ~ 5 )养护条件下混凝土抗压强度高于恒低温( - 10 )养护条件下混凝土抗压强度，孔隙率要低于恒低温( - 10 )养护条件下混凝土的孔隙率;当单掺粉煤灰时掺量低于15 % 、单掺硅灰时掺量低于8 % ，低温混凝土的密实性较好。 |
| 10. | Sodium sulfate can decrease the compressive strength of concrete but increase the flexural strength . sodium nitrite can decrease the compressive strength of concrete but increase the flexural strength obviously . calcium nitrite can increase the compressive strength of concrete and decrease the flexural strength
掺入na2so4后混凝土的抗压强度降低但抗折强度有所提高;掺入nano2后混凝土抗压强度降低但抗折强度有很大提高;掺入ca ( no2 ) 2后混凝土抗压强度基本不变但同时也降低了抗折强度;而掺入nacl后混凝土抗压强度有所降低,抗折强度稍有提高。 |
