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发布网友 发布时间：2022-02-26 03:26

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热心网友 时间：2022-02-26 04:56

Adding steel fiber concrete block matrix the emergence and development of concrete cracks, compared with ordinary concrete, presents a better anti-cracking performance. GNA expansion agent with low dosage, low alkali content, and the advantages of good dispersion performance, mixed with proper amount of concrete GNA stable inflation rate, the late charge becomes smaller, the intensity is high performance significantly, fiber and expansion agent and adding can well meet the requirement of modern building crack, waterproof rability. Combining with engineering example, the high grade concrete mixing fiber and expansive agent in the preparation and application was summarized. 求采纳！！

热心网友 时间：2022-02-26 06:14

Adding steel fiber into concrete blocks the emergence and development of concrete cracks.Comparing with ordinary concrete, it presents a better anti-cracking performance. GNA expansion agent has the advantage of low dosage, low alkali content and good dispersion performance. Mixing GNA with proper amount of concrete, the expansion rate becomes stable, the contraction at the late stage becomes less, and the strength performance is significantly higher. Adding both steel fiber and expansion agent can well meet the rability requirements of modern building for crack prevention and waterproof. Combining with real engineering cases, the preparation and application of the high grade concrete mixing with steel fiber and expansion agent has been summarized.
混凝土中掺入钢纤维阻滞了基体混凝土裂缝的产生和发展，与普通混凝土相比，呈现出较好的防裂性能。GNA膨胀剂具有低掺量、低碱含量、分散性能好等优点，掺有适量GNA的混凝土则具有膨胀率稳定、后期收缩小、强度高等显著性能，钢纤维和膨胀剂同时掺加能较好地满足了现代建筑防裂、防水等耐久性要求。结合工程实例，对高标号混凝土掺钢纤维和膨胀剂在实际配制和应用中进行总结

热心网友 时间：2022-02-26 07:48

the concrete which is mixed with steel fibre blocks the proction and development of the original concrete. compared with common concrete,it present better anti-cracking properties.
GNA expanding agent has the advantages of low accretion,low alkali content and good dispersity. the concrete which is mixed with moderate GNA has obvious properties of stable anti-cracking rate, tiny contract in later stage,and high intensity. the mixture of steel fibre and expanding agent can better meet the requirements of the anti-cracking of modern architecture,waterproof , and endorance. combine the practical engineering sample,we conclude in practical preparation and use of the mixure of high grade concrete.steel fibre and expanding agent.
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