Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete reinforced water-retaining internal curing material and preparation method thereof
The invention discloses a concrete reinforced water-retaining internal curing material and a preparation method thereof. The method comprises the following steps: respectively weighing the following components in parts by weight: 10 parts of acrylic acid, 4 parts of acrylamide, 3 parts of ground zeolite powder, 2 parts of activated coal gangue powder, 0.005 part of N,N-methylene bisacrylamide and 0.1 part of potassium persulfate, adding the components into a container, uniformly stirring, dropwise adding a NaOH solution, uniformly stirring until the neutralization degree is 60 percent, reacting for 10 hours, and drying, thereby obtaining a solid cross-linking agent; weighing the solid cross-linking agent, coal ash beads, silica colloidal particles, phosphorus gypsum, natural alunite, magnesium oxide and calcium oxide according to the weight ratio of 82:5:4:3:3:2:1, adding the mixture into a ball mill, and grinding, thereby obtaining the concrete reinforced water-retaining internal curing material. The concrete reinforced water-retaining internal curing material disclosed by the invention is excellent in water retention capacity, pores reserved by water release inside concrete filled with the traditional internal curing material can be canceled, the compaction rate and strength of the concrete are guaranteed, the later maintenance cost is greatly reduced, the self-shrinkage within 28 days is reduced by 50-80 percent compared with that of common concrete, and the compressive strength is improved by 5-10 percent.
Concrete reinforced water-retaining internal curing material and preparation method thereof
The invention discloses a concrete reinforced water-retaining internal curing material and a preparation method thereof. The method comprises the following steps: respectively weighing the following components in parts by weight: 10 parts of acrylic acid, 4 parts of acrylamide, 3 parts of ground zeolite powder, 2 parts of activated coal gangue powder, 0.005 part of N,N-methylene bisacrylamide and 0.1 part of potassium persulfate, adding the components into a container, uniformly stirring, dropwise adding a NaOH solution, uniformly stirring until the neutralization degree is 60 percent, reacting for 10 hours, and drying, thereby obtaining a solid cross-linking agent; weighing the solid cross-linking agent, coal ash beads, silica colloidal particles, phosphorus gypsum, natural alunite, magnesium oxide and calcium oxide according to the weight ratio of 82:5:4:3:3:2:1, adding the mixture into a ball mill, and grinding, thereby obtaining the concrete reinforced water-retaining internal curing material. The concrete reinforced water-retaining internal curing material disclosed by the invention is excellent in water retention capacity, pores reserved by water release inside concrete filled with the traditional internal curing material can be canceled, the compaction rate and strength of the concrete are guaranteed, the later maintenance cost is greatly reduced, the self-shrinkage within 28 days is reduced by 50-80 percent compared with that of common concrete, and the compressive strength is improved by 5-10 percent.
Concrete reinforced water-retaining internal curing material and preparation method thereof
HE RUI (Autor:in) / LIU KAIPING (Autor:in) / CHEN HUAXIN (Autor:in) / GUAN BOWEN (Autor:in) / SHENG YANPING (Autor:in) / XING MINGLIANG (Autor:in)
03.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
Internal curing concrete and preparation method thereof
| Europäisches Patentamt | 2024
Internal curing concrete and preparation method thereof
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2021
Concrete internal curing agent and preparation method thereof
| Europäisches Patentamt | 2024