GRC构件大都是装饰性构件，用户也不接受看得见的裂缝。所以，一旦出现裂缝，就是很大的麻烦。防止GRC构件裂缝的对策包括什么呢？下面
山东GRC构件厂家为您讲解。
GRC components are mostly decorative components, and users do not accept visible cracks. Therefore, once cracks appear, it is a big trouble. What are the countermeasures to prevent cracks in GRC components? Next, Shandong GRC component manufacturer will explain to you.
（1）必须使用耐碱玻纤。
(1) Alkali resistant glass fiber must be used.
（2）选用低收缩率水泥。
(2) Low shrinkage cement shall be selected.
（3）在..GRC强度等力学性能的前提下，选用强度等级低的水泥。
(3) At On the premise of mechanical properties such as GRC strength, cement with low strength grade shall be selected.
（4）禁止使用过期或受潮水泥。
(4) It is prohibited to use expired or damp cement.
（5）使用低碱水泥时，为防止碳化，宜涂刷表面防护剂。
(5) When low alkali cement is used, surface protective agent should be applied to prevent carbonization.
（6）小于0.15mm的细骨料不超过10%。
(6) Fine aggregate less than 0.15 mm shall not exceed 10%.
（7）慎重使用轻质、软质、弹性模量低和吸水率高的骨料。
(7) Use lightweight, soft, low elastic modulus and high water absorption aggregates with caution.
（8）含泥量大的骨料清洗后使用。
(8) The aggregate with large mud content shall be used after cleaning.
（9）减水剂使用应适量，应慎重使用早强剂。
(9) The water reducing agent shall be used appropriately, and the early strength agent shall be used cautiously.
（10）使用人工砂需控制石粉含量。
(10) The content of stone powder shall be controlled when using artificial sand.
（11）掺加聚合物。
(11) Add polymer.
（12）在强度的前提下，减少水泥用量（或增加砂子用量），灰砂比以1∶1为宜。
(12) On the premise of strength, reduce the amount of cement (or increase the amount of sand), and the lime sand ratio should be 1 ∶ 1.
（13）水灰比宜控制在0.3～0.4之间。（14）玻纤含量符合规范要求。
(13) The water cement ratio should be controlled between 0.3 and 0.4. (14) The glass fiber content meets the specification requirements.
（15）颜料掺量不宜超过6%。（16）构件设计和制作避免断面厚度突变。
(15) The pigment content should not exceed 6%. (16) The design and fabrication of components shall avoid abrupt changes in section thickness.
（17）连接龙骨与GRC板的锚杆避免刚度过大，或太粗、或太短。
(17) The anchor rod connecting keel and GRC plate shall not be too large, too thick or too short.
（18）转角和大折边构件，两个方向的锚杆应避免形成刚性约束。
(18) For corner and large flange members, the anchor rod in two directions shall avoid forming rigid constraints.
（19）在同一受力方向上只布置1个刚性锚杆，其余都是柔性锚杆。
(19) Only one rigid anchor bolt is arranged in the same stress direction, and the rest are flexible anchors.
（20）GRC墙板的重力锚杆应为下托式，以避免GRC板受拉。
(20) The gravity anchor rod of GRC wallboard shall be of the down support type to avoid tension of GRC wallboard.
（21）表面质感层的干缩率不大于基层GRC的干缩率。
(21) The drying shrinkage of the surface texture layer shall not be greater than that of the base GRC.
（22）横向构件顶板设置排水坡度设计，防止积水积冰。
(22) The top plate of transverse member is designed with drainage slope to prevent ponding and ice accumulation.
（23）安装结点应当有3个方向的误差调整空间，避免安装时“强拧”或焊接。
(23) The installation node shall have error adjustment space in three directions to avoid "forced tightening" or welding during installation.
（24）一个构件的安装结点应设计成1个固定结点和3个活动结点的组合。
(24) The installation node of a component shall be designed as a combination of one fixed node and three active nodes.
Due to the thin thickness of GRC members, cracks are easy to penetrate, resulting in weakening or even loss of bearing capacity. So you can use the above countermeasures as a reference and pay attention to us http://www.aswjc.com Learn more!
