在使用中要记得对山东GRC构件的钢筋、预埋件采取防锈措施。下面就来讲讲防止
山东GRC构件中钢筋生锈的方法，方便之后的顺利使用。
During use, remember to take rust prevention measures for the reinforcement and embedded parts of Shandong GRC members. Now let's talk about the methods to prevent the rebar from rusting in Shandong GRC members, so as to facilitate the smooth use in the future.
GRC构件一般采用快硬硫铝酸盐水泥，属低碱度水泥，根据规范要求，钢筋应采用不锈钢丝或镀锌钢丝、预埋件应采用不锈钢板或镀锌钢板等，有条件的话可使用环氧涂层钢筋。
Generally, GRC components are made of quick hardening sulphoaluminate cement, which is low alkalinity cement. According to the specification requirements, stainless steel wire or galvanized steel wire shall be used for reinforcement, stainless steel plate or galvanized steel plate shall be used for embedded parts, and epoxy coated reinforcement can be used if conditions permit.
降低GRC构件的氯离子含量。氯离子含量对钢筋腐蚀有很大影响，过量的氯离子会破坏钢筋表面的钝化膜，造成钢筋锈蚀。对于GRC材料把关，禁止使用海砂，应定期检测砂子中的氯离子含量，严禁用氯离子含量超标的工业废水混和砂浆。
Reduce the chloride ion content of GRC components. The content of chloride ion has a great influence on the corrosion of reinforcement. Excessive chloride ion will damage the passive film on the surface of reinforcement and cause corrosion of reinforcement. For GRC material control, it is prohibited to use sea sand, and the chloride ion content in the sand should be tested regularly. It is prohibited to mix mortar with industrial wastewater with chloride ion content exceeding the standard.
外加剂丙烯酸酯共聚乳液(丙乳)。丙乳液是一种高分子聚合物水分散体，是一种水泥改性剂，可改善GRC构件的抗裂、防水、防氯离子渗透、耐磨、耐老化等性能。
Admixture Acrylate copolymer emulsion (acrylic emulsion). Acrylic emulsion is a polymer water dispersion and a cement modifier, which can improve the crack resistance, water resistance, chlorine ion penetration resistance, wear resistance, aging resistance and other properties of GRC components.
增强GRC构件的密实度、完整性和保护层厚度。GRC构件的密实性和完整性是指构件是否有裂缝、无蜂窝空洞、缺棱掉角、露筋等现象，促使钢筋生锈的关键因素还在于大气中的氧渗入钢筋表面的能力。
Enhance the compactness, integrity and protective layer thickness of GRC components. The compactness and integrity of GRC components refer to whether the components have cracks, no honeycombs and cavities, missing edges and corners, exposed reinforcement and other phenomena. The key factor to promote reinforcement rust is the ability of atmospheric oxygen to penetrate into the reinforcement surface.
如果构件密实、完好、保护层厚度能得到保证，就能有效阻止水和氧气进入，GRC构件制作时应采用低水灰比，提高构件密实度，制作过程中严格控制预埋件的密实度，严格控制预埋件密实度，制作过程中严格控制预埋件密实度，严格控制预埋件密实度，确保构件密实度不高，不脱模，不漏。
If the components are dense, intact and the thickness of the protective layer can be guaranteed, it can effectively prevent water and oxygen from entering. When making GRC components, low water cement ratio should be used to improve the component compactness. During the manufacturing process, the compactness of embedded parts should be strictly controlled, and the compactness of embedded parts should be strictly controlled. During the manufacturing process, the compactness of embedded parts should be strictly controlled, and the compactness of embedded parts should be strictly controlled to ensure that the component compactness is not high, demoulding is not allowed, and leakage is not allowed.
GRC构件外涂隔离层。该方法可以提高构件的防水性和耐久性，隔离腐蚀环境，延缓碳化速度，保护构件，施工时，要构件附着物，然后用水冲洗，充分干燥，在构件表面涂上砂浆或绝缘层，如沥青漆、环氧树脂涂料或油漆等。
GRC components are externally coated with isolation layer. This method can improve the waterproof and durability of the component, isolate the corrosive environment, delay the carbonization speed, and protect the component. During construction, first remove the attachment of the component, then rinse with water, fully dry, and apply mortar or insulating layer on the surface of the component, such as asphalt paint, epoxy resin paint or paint.
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