Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steam-curing-free rust-free lightweight ultra-high performance concrete well lid and preparation method thereof
The invention discloses a steam-curing-free rust-free lightweight ultra-high performance concrete well lid and a preparation method thereof.The preparation method comprises the following steps that materials are prepared, specifically, aggregate is saturated with water in advance, so that the aggregate is in a saturated surface dry state; pouring the cement, the silica fume, the mineral admixture, the non-steaming powder, the aggregate, the water reducing agent, the defoaming agent and the water into a stirrer, stirring, then pouring the steel fibers and the organic fibers into the stirrer, and stirring to obtain slurry; and pouring the uniformly stirred slurry into a well lid mold, and performing normal-temperature maintenance for 26-30 days to obtain the concrete well lid. Through the mode, according to the steam-curing-free rust-free light ultra-high performance concrete well lid and the preparation method thereof, the shrinkage and density of the concrete are reduced, the compressive strength of the well lid is improved, freezing resistance and abrasion resistance are good, the problem that ordinary steel fibers are prone to rusting on the surface layer of the concrete is solved, the activity of the cement and the admixture is stimulated through the steam-curing-free powder, and the well lid has the advantages of being environmentally friendly and free of pollution. The early strength is improved, and the performance requirements of well lid products can be met in a natural normal-temperature state.
本发明公开了一种免蒸养无锈蚀轻质超高性能混凝土井盖及其制备方法，包括以下步骤：备料，将骨料预先饱水，使得骨料成饱和面干状态；将水泥、硅灰、矿物掺合料、免蒸粉、骨料、减水剂、消泡剂、水倒入搅拌机，搅拌后再将钢纤维、有机纤维倒入搅拌机，搅拌得到浆体；将搅拌均匀后的浆体浇筑进井盖模具内，经常温养护26~30天后得到混凝土井盖。通过上述方式，本发明所述的免蒸养无锈蚀轻质超高性能混凝土井盖及其制备方法，降低混凝土了收缩与密度，提升了井盖抗压强度，抗冻性、耐磨性较好，改善了普通钢纤维易在混凝土表层锈蚀的问题，免蒸粉激发水泥与掺合料的活性，提高早期强度，自然常温状态下即可达到井盖产品性能要求。
Steam-curing-free rust-free lightweight ultra-high performance concrete well lid and preparation method thereof
The invention discloses a steam-curing-free rust-free lightweight ultra-high performance concrete well lid and a preparation method thereof.The preparation method comprises the following steps that materials are prepared, specifically, aggregate is saturated with water in advance, so that the aggregate is in a saturated surface dry state; pouring the cement, the silica fume, the mineral admixture, the non-steaming powder, the aggregate, the water reducing agent, the defoaming agent and the water into a stirrer, stirring, then pouring the steel fibers and the organic fibers into the stirrer, and stirring to obtain slurry; and pouring the uniformly stirred slurry into a well lid mold, and performing normal-temperature maintenance for 26-30 days to obtain the concrete well lid. Through the mode, according to the steam-curing-free rust-free light ultra-high performance concrete well lid and the preparation method thereof, the shrinkage and density of the concrete are reduced, the compressive strength of the well lid is improved, freezing resistance and abrasion resistance are good, the problem that ordinary steel fibers are prone to rusting on the surface layer of the concrete is solved, the activity of the cement and the admixture is stimulated through the steam-curing-free powder, and the well lid has the advantages of being environmentally friendly and free of pollution. The early strength is improved, and the performance requirements of well lid products can be met in a natural normal-temperature state.
本发明公开了一种免蒸养无锈蚀轻质超高性能混凝土井盖及其制备方法，包括以下步骤：备料，将骨料预先饱水，使得骨料成饱和面干状态；将水泥、硅灰、矿物掺合料、免蒸粉、骨料、减水剂、消泡剂、水倒入搅拌机，搅拌后再将钢纤维、有机纤维倒入搅拌机，搅拌得到浆体；将搅拌均匀后的浆体浇筑进井盖模具内，经常温养护26~30天后得到混凝土井盖。通过上述方式，本发明所述的免蒸养无锈蚀轻质超高性能混凝土井盖及其制备方法，降低混凝土了收缩与密度，提升了井盖抗压强度，抗冻性、耐磨性较好，改善了普通钢纤维易在混凝土表层锈蚀的问题，免蒸粉激发水泥与掺合料的活性，提高早期强度，自然常温状态下即可达到井盖产品性能要求。
Steam-curing-free rust-free lightweight ultra-high performance concrete well lid and preparation method thereof
一种免蒸养无锈蚀轻质超高性能混凝土井盖及其制备方法
LIU KAI (Autor:in) / SU XINLU (Autor:in) / MAO RONGLIANG (Autor:in) / QIAN JIAJIA (Autor:in) / SHI LEI (Autor:in)
26.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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