实现水工大体积混凝土高性能化问题的探讨

由于水工大体积混凝土自身的特殊性，传统的设计模式及其所处的特殊环境，已经显示出其耐久性严重不足，主要表现为渗漏，溶蚀、侵蚀、冻融破坏和钢筋锈蚀，而高性能混凝土自身的特点及其在许多水电工程中的成功应用，已经证明实现水工大体积混凝土高性能化是解决其耐久性问题的基本途径，但是，目前尚需要解决高性能混凝土的造价问题和混凝土的新旧设计方法，设计观念之间的矛盾问题，这些问题可以通过更新设计观念、优选材料、优化

Discussion on the Problems of the Performance-Enhancing of Mass Concrete of Hydraulic Structure Engineering

The mass concrete of hydraulic structure engineering (MCHSE) has shown bad durability owing to the particularity of mass concrete of hydraulic structure engineering (MCHSE) itself, the conventional designing method and the particular environment which MCHSE is located at. The main displaying form is leakage, dissolving, corrosion, freezing and thawing damage, and steel corrosion. The characteristics of High Performance Concrete (HPC) itself and its successful applications to many hydraulic structure engineering shows that the basic approach solving the durability of MCHSE is the performance enhancing of MCHSE. But the construction cost of HPC and the contradiction between the new and old designing method of concrete should be paid much attention to. These problems can be solved by renovating the designing conception, selecting the materials carefully, optimizing the mix proportion of concrete, utilizing the new construction technics and advancing the level of technology of HPC further.