Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Recycled concrete and preparation method thereof
The invention belongs to the technical field of concrete. The invention relates to recycled concrete and a preparation method thereof. The recycled concrete comprises the following raw materials in parts by weight: 150-200 parts of a recycled concrete aggregate, 400-450 parts of cement, 700-800 parts of sand, 1000-1100 parts of stones, 120-150 parts of mineral powder, 50-100 parts of fly ash, 3-7parts of an expanding agent, 5-10 parts of a tackifier, 4-8 parts of a water reducing agent and 150-200 parts of water. Concrete waste is subjected to crushing, hydrochloric acid solution soaking, sodium silicate solution soaking and polyvinyl alcohol solution soaking to prepare the recycled concrete aggregate, and gaps of the concrete waste are filled, so that the mechanical property of the recycled concrete aggregate is improved. The recycled concrete prepared in the invention has excellent mechanical properties, and is suitable for constructional engineering with high requirements on concrete.
本发明属于混凝土技术领域，具体涉及一种再生混凝土及其制备方法，一种再生混凝土，按照质量份数计，包括如下原料：再生混凝土骨料150～200份、水泥400～450份、砂子700～800份、石子1000～1100份、矿粉120～150份、粉煤灰50～100份、膨胀剂3～7份、增粘剂5～10份、减水剂4～8份以及水150～200份；混凝土废料经过破碎、盐酸溶液浸泡、硅酸钠溶液浸泡以及聚乙烯醇溶液浸泡后制得再生混凝土骨料，通过填充混凝土废料的缝隙，从而提高再生混凝土骨料的力学性能。本发明制备的再生混凝土，力学性能优异，适用于对混凝土要求高的建筑工程使用。
Recycled concrete and preparation method thereof
The invention belongs to the technical field of concrete. The invention relates to recycled concrete and a preparation method thereof. The recycled concrete comprises the following raw materials in parts by weight: 150-200 parts of a recycled concrete aggregate, 400-450 parts of cement, 700-800 parts of sand, 1000-1100 parts of stones, 120-150 parts of mineral powder, 50-100 parts of fly ash, 3-7parts of an expanding agent, 5-10 parts of a tackifier, 4-8 parts of a water reducing agent and 150-200 parts of water. Concrete waste is subjected to crushing, hydrochloric acid solution soaking, sodium silicate solution soaking and polyvinyl alcohol solution soaking to prepare the recycled concrete aggregate, and gaps of the concrete waste are filled, so that the mechanical property of the recycled concrete aggregate is improved. The recycled concrete prepared in the invention has excellent mechanical properties, and is suitable for constructional engineering with high requirements on concrete.
本发明属于混凝土技术领域，具体涉及一种再生混凝土及其制备方法，一种再生混凝土，按照质量份数计，包括如下原料：再生混凝土骨料150～200份、水泥400～450份、砂子700～800份、石子1000～1100份、矿粉120～150份、粉煤灰50～100份、膨胀剂3～7份、增粘剂5～10份、减水剂4～8份以及水150～200份；混凝土废料经过破碎、盐酸溶液浸泡、硅酸钠溶液浸泡以及聚乙烯醇溶液浸泡后制得再生混凝土骨料，通过填充混凝土废料的缝隙，从而提高再生混凝土骨料的力学性能。本发明制备的再生混凝土，力学性能优异，适用于对混凝土要求高的建筑工程使用。
Recycled concrete and preparation method thereof
一种再生混凝土及其制备方法
XIAO FENGJUN (Autor:in) / WANG WEI (Autor:in) / LI JIANKE (Autor:in)
10.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Recycled concrete, recycled concrete prefabricated part and preparation method thereof
| Europäisches Patentamt | 2021