A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Concrete material, preparation method and application thereof
The invention provides a concrete material which comprises the following components: magnesium oxide, phosphate, simulated lunar soil, a water reducing agent, a retarder and smoothie, and the magnesium oxide comprises active magnesium oxide and dead burned magnesium oxide; the mass ratio of the smoothie to the solid is 0.18-0.24, and the solid comprises magnesium oxide, phosphate, simulated lunar soil and a retarder; the mass ratio of the simulated lunar soil to the magnesium oxide is 1/3-1; the molar ratio of magnesium oxide to phosphate is 4-12; the retarder accounts for 4-10% of the magnesium oxide by mass; the mass ratio of the active magnesium oxide to the dead burned magnesium oxide is 0.08-0.12; the mass fraction of the water reducing agent in the magnesium phosphate cement is 5-8%, and the magnesium phosphate cement comprises magnesium oxide and phosphate; the mass ratio of the water reducing agent to the phosphate is 1/8-1/3. The simulated lunar soil is not only an aggregate of lunar concrete, but also the activity of the simulated lunar soil can be excited by the magnesium phosphate cement, the aluminosilicate glass phase of the simulated lunar soil is dissolved in the pH-neutral MKPC hydration product, and a silicon-aluminum phase substance is generated, so that the compactness and durability of a matrix are improved.
本发明提供一种混凝土材料，包括以下组分：氧化镁、磷酸盐、模拟月壤、减水剂、缓凝剂和冰沙，其中氧化镁包括活性氧化镁和死烧氧化镁；冰沙与固体的质量比0.18～0.24，固体包括氧化镁、磷酸盐、模拟月壤和缓凝剂；模拟月壤和氧化镁的质量比为1/3～1；氧化镁和磷酸盐的摩尔比为4～12；缓凝剂占氧化镁的质量分数为4％～10％；活性氧化镁和死烧氧化镁的质量比为0.08～0.12；减水剂占磷酸镁水泥的质量分数为5％～8％，磷酸镁水泥包括氧化镁和磷酸盐；减水剂和磷酸盐的质量比为1/8～1/3。本发明中模拟月壤不仅是月球混凝土的集料，同时其活性也会被磷酸镁水泥激发，模拟月壤铝硅质玻璃相在pH中性的MKPC水化产物内部发生溶解，并生成硅铝相物质，从而提高基体的密实度和耐久性。
Concrete material, preparation method and application thereof
The invention provides a concrete material which comprises the following components: magnesium oxide, phosphate, simulated lunar soil, a water reducing agent, a retarder and smoothie, and the magnesium oxide comprises active magnesium oxide and dead burned magnesium oxide; the mass ratio of the smoothie to the solid is 0.18-0.24, and the solid comprises magnesium oxide, phosphate, simulated lunar soil and a retarder; the mass ratio of the simulated lunar soil to the magnesium oxide is 1/3-1; the molar ratio of magnesium oxide to phosphate is 4-12; the retarder accounts for 4-10% of the magnesium oxide by mass; the mass ratio of the active magnesium oxide to the dead burned magnesium oxide is 0.08-0.12; the mass fraction of the water reducing agent in the magnesium phosphate cement is 5-8%, and the magnesium phosphate cement comprises magnesium oxide and phosphate; the mass ratio of the water reducing agent to the phosphate is 1/8-1/3. The simulated lunar soil is not only an aggregate of lunar concrete, but also the activity of the simulated lunar soil can be excited by the magnesium phosphate cement, the aluminosilicate glass phase of the simulated lunar soil is dissolved in the pH-neutral MKPC hydration product, and a silicon-aluminum phase substance is generated, so that the compactness and durability of a matrix are improved.
本发明提供一种混凝土材料，包括以下组分：氧化镁、磷酸盐、模拟月壤、减水剂、缓凝剂和冰沙，其中氧化镁包括活性氧化镁和死烧氧化镁；冰沙与固体的质量比0.18～0.24，固体包括氧化镁、磷酸盐、模拟月壤和缓凝剂；模拟月壤和氧化镁的质量比为1/3～1；氧化镁和磷酸盐的摩尔比为4～12；缓凝剂占氧化镁的质量分数为4％～10％；活性氧化镁和死烧氧化镁的质量比为0.08～0.12；减水剂占磷酸镁水泥的质量分数为5％～8％，磷酸镁水泥包括氧化镁和磷酸盐；减水剂和磷酸盐的质量比为1/8～1/3。本发明中模拟月壤不仅是月球混凝土的集料，同时其活性也会被磷酸镁水泥激发，模拟月壤铝硅质玻璃相在pH中性的MKPC水化产物内部发生溶解，并生成硅铝相物质，从而提高基体的密实度和耐久性。
Concrete material, preparation method and application thereof
一种混凝土材料、制备方法及其应用
MA HAOXIA (author) / LIU ZHIFENG (author) / HUANG DONGHUI (author) / LIANG XIANCHAO (author) / JIANG HAOTIAN (author) / WANG YANFANG (author) / KIM JIN-HWA (author)
2023-09-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E04G
SCAFFOLDING
,
Baugerüste
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
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