海砂混凝土

从而得出海砂混凝土在复合环境作用下的劣化机理。

So as to get the degradation mechanism of sea sand concrete under combined environmental loads .

但是，由于对海砂混凝土破坏机理认识不足，海砂混凝土结构耐久性大多较差。

However , because the degradation mechanism of sea sand concrete has not been fully understood , the durability of sea sand concrete structures is poor .

碳化与氯离子侵蚀复合作用后，海砂混凝土中的氯离子含量最高，淡化海砂混凝土和河砂混凝土无明显差异。

After combined carbonation and chloride penetration test , the chloride content of sea sand concrete is the highest , and that of washed sea sand concrete and river sand concrete has no significant difference .

国内外学者针对海砂混凝土耐久性能进行了研究，并提出了淡化法、阻锈剂法及电化学保护法等应用海砂资源的方法。

Scholars studied on the durability of sea sand concrete at home and abroad , and methods of using sea sand on construction were put forward , such as fading , rust and corrosion inhibiting , electrochemical protection and so on .

海砂用于混凝土构造物耐久性研究及使用管理

Effect of sea sand on concrete durability and its management

海砂对混凝土收缩有不利的影响。

The sand has adverse effects of concrete shrinkage .

通过对钢筋的锈蚀机理分析，揭示海砂对混凝土结构耐久性的影响。

By the analyses of steel bar corrosion , show the influence of the see sand upon the concrete structure durability .

随着我国建设规模的扩大，河砂资源短缺的现象日益突出，许多沿海地区已经采用海砂作为混凝土细骨料。

With the expansion of the scale of construction and the shortage of river sand resource , sea sand has already been used as fine aggregate of concrete in many coastal areas .

淡化海砂高性能混凝土氯离子渗透性研究

Study on chloride ion permeability of high performance concrete with desalted sea sand

以海砂直接配制的混凝土90天电通量高达2880库伦，会腐蚀钢筋混凝土中的钢筋。

Prepared directly with sea sand concrete in the 90 days up to 2880 coulomb electric flux will be corrosion of the steel reinforced concrete .

上新世-更新世近海砂层海砂在福建地区混凝土中的应用前景

The Application Perspective of Sea Sand in Concrete of Fujian

本文针对珠江口海砂，试验研究了海砂混凝土构件力学性能，并对海砂混凝土构件试验进行了分析。

This article use the the ZhuJiang River estuary sea sand , carries on the experimental research the mechanical properties of sea sand concretes component , and carries on analysis to sea sand concretes beam .

碱性活化水及冲洗后的海砂都含有一定的OH-离子，减小了海砂混凝土液相中C1-/OH-的比值，能更好抑制C1-离子侵蚀及混凝土碳化，利于提高海砂混凝土耐久性能。

Both alkaline-activated water and desalinated sea sand contain certain amount of OH - ions , which could reduce the Cl - / OH-ratio in concrete liquidoid ; accordingly , Cl-ion corrosion and concrete carbonation are further inhibited , and concrete durability enhanced .