Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Roadbed side ditch RPC cover plate and preparation method thereof
The invention provides a roadbed side ditch RPC cover plate and a preparation method thereof. The cover plate is prepared from the following raw material components in parts by weight: 100 to 150 parts of cement, 60 to 80 parts of silica fume, 40 to 50 parts of sand, 3 to 6 parts of reinforced fibers, 0.2 to 0.8 part of a water reducing agent, 0.1 to 0.6 part of a defoaming agent, 0.3 to 0.8 partof an expanding agent and 200 to 300 parts of water; The expanding agent in the roadbed side ditch RPC cover plate disclosed by the invention is high in medium expansion rate, low alkali content and high strength and good stability; and when being doped into reactive powder concrete, the expanding agent can increases the early-stage expansion rate of the reactive powder concrete, fills the internal gaps of the reactive powder concrete, still keeps a weak expansion form in the later stage, can compensate the cold shrinkage of the reactive powder concrete, continuously fills the internal gaps ofthe reactive powder concrete, and is compact in structure, thereby improving the durability of the reactive powder concrete cover plate.
本发明提供了一种路基边沟RPC盖板及其制备方法，该盖板包括如下重量份的原料组分：100‑150份水泥、60‑80份硅灰、40‑50份砂、3‑6份增强纤维、0.2‑0.8份减水剂、0.1‑0.6份消泡剂、0.3‑0.8份膨胀剂和200‑300份水；本发明的膨胀剂中膨胀率高，碱含量低，强度高，稳定性好，掺入到活性粉末混凝土中，提高活性粉末混凝土早期膨胀率，填充活性粉末混凝土内部间隙，且后期仍保持微弱的膨胀型，能够补偿活性粉末混凝土的冷缩，不断填充活性粉末混凝土内部间隙，结构致密，从而提高了活性粉末混凝土盖板的耐久性。
Roadbed side ditch RPC cover plate and preparation method thereof
The invention provides a roadbed side ditch RPC cover plate and a preparation method thereof. The cover plate is prepared from the following raw material components in parts by weight: 100 to 150 parts of cement, 60 to 80 parts of silica fume, 40 to 50 parts of sand, 3 to 6 parts of reinforced fibers, 0.2 to 0.8 part of a water reducing agent, 0.1 to 0.6 part of a defoaming agent, 0.3 to 0.8 partof an expanding agent and 200 to 300 parts of water; The expanding agent in the roadbed side ditch RPC cover plate disclosed by the invention is high in medium expansion rate, low alkali content and high strength and good stability; and when being doped into reactive powder concrete, the expanding agent can increases the early-stage expansion rate of the reactive powder concrete, fills the internal gaps of the reactive powder concrete, still keeps a weak expansion form in the later stage, can compensate the cold shrinkage of the reactive powder concrete, continuously fills the internal gaps ofthe reactive powder concrete, and is compact in structure, thereby improving the durability of the reactive powder concrete cover plate.
本发明提供了一种路基边沟RPC盖板及其制备方法，该盖板包括如下重量份的原料组分：100‑150份水泥、60‑80份硅灰、40‑50份砂、3‑6份增强纤维、0.2‑0.8份减水剂、0.1‑0.6份消泡剂、0.3‑0.8份膨胀剂和200‑300份水；本发明的膨胀剂中膨胀率高，碱含量低，强度高，稳定性好，掺入到活性粉末混凝土中，提高活性粉末混凝土早期膨胀率，填充活性粉末混凝土内部间隙，且后期仍保持微弱的膨胀型，能够补偿活性粉末混凝土的冷缩，不断填充活性粉末混凝土内部间隙，结构致密，从而提高了活性粉末混凝土盖板的耐久性。
Roadbed side ditch RPC cover plate and preparation method thereof
一种路基边沟RPC盖板及其制备方法
RONG QIYING (Autor:in)
27.11.2020
Patent
Elektronische Ressource
Chinesisch
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