Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-shrinkage high-strength concrete and preparation method thereof
The invention discloses a preparation method of low-shrinkage high-strength concrete, and belongs to the technical field of building materials, the preparation method comprises the steps of primary mixing, nitriding treatment, polymer surface modification, vacuum cold treatment and post-treatment; in the nitriding treatment, the primary mixed powder is placed in a vacuum nitriding furnace for vacuum nitriding; in the step of polymer surface modification, primary mixed powder subjected to nitriding treatment and a surface modifier are put into a mixer to be stirred, and microwave radiation modification is performed after stirring is finished; according to the preparation method, the compressive strength, breaking strength, tensile strength, ductility and volume stability of the concrete can be improved, the self weight is reduced, and meanwhile, the elastic modulus, carbonization resistance, erosion resistance, durability, flowability and workability are improved.
本发明公开了一种低收缩高强混凝土的制备方法，属于建筑材料技术领域，该制备方法包括初级混合，氮化处理，高分子表面修饰，真空冷处理，后处理；所述氮化处理，将初级混合粉置于真空氮化炉中进行真空氮化；所述高分子表面修饰，将氮化处理后的初级混合粉与表面修饰剂放入拌合器内搅拌，搅拌结束后进行微波辐射改性；本发明的制备方法能够提高混凝土的抗压强度，抗折强度，抗拉强度，延展性，体积稳定性，降低自重，同时提高弹性模量，抗碳化能力，抗侵蚀能力，耐久性，流动性和和易性。
Low-shrinkage high-strength concrete and preparation method thereof
The invention discloses a preparation method of low-shrinkage high-strength concrete, and belongs to the technical field of building materials, the preparation method comprises the steps of primary mixing, nitriding treatment, polymer surface modification, vacuum cold treatment and post-treatment; in the nitriding treatment, the primary mixed powder is placed in a vacuum nitriding furnace for vacuum nitriding; in the step of polymer surface modification, primary mixed powder subjected to nitriding treatment and a surface modifier are put into a mixer to be stirred, and microwave radiation modification is performed after stirring is finished; according to the preparation method, the compressive strength, breaking strength, tensile strength, ductility and volume stability of the concrete can be improved, the self weight is reduced, and meanwhile, the elastic modulus, carbonization resistance, erosion resistance, durability, flowability and workability are improved.
本发明公开了一种低收缩高强混凝土的制备方法，属于建筑材料技术领域，该制备方法包括初级混合，氮化处理，高分子表面修饰，真空冷处理，后处理；所述氮化处理，将初级混合粉置于真空氮化炉中进行真空氮化；所述高分子表面修饰，将氮化处理后的初级混合粉与表面修饰剂放入拌合器内搅拌，搅拌结束后进行微波辐射改性；本发明的制备方法能够提高混凝土的抗压强度，抗折强度，抗拉强度，延展性，体积稳定性，降低自重，同时提高弹性模量，抗碳化能力，抗侵蚀能力，耐久性，流动性和和易性。
Low-shrinkage high-strength concrete and preparation method thereof
一种低收缩高强混凝土及其制备方法
GU CHUANXIN (Autor:in) / GUO YANLI (Autor:in)
06.05.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
/
C04B
Kalk
,
LIME
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