Combined UHPC curing method

A combined, beam-based technology, applied in the direction of ceramic molding machines, manufacturing tools, auxiliary molding equipment, etc.
CN113370367AActive Publication Date: 2021-09-10GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG
Publication Date
2021-09-10

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Abstract

The invention discloses a combined UHPC curing method. The curing method comprises three curing procedures, namely preliminary curing with a mold, demolding spraying curing and high-temperature steam curing, in addition, a temperature control system aiming at the three curing procedures is arranged in the curing method, temperature and humidity curing is carried out through the three curing procedures, and therefore the temperature difference between inside and outside the structure is reduced, and meanwhile the hydration effect is promoted; during long-line method prefabrication, prefabrication is carried out from the segments on the two sides of a pedestal to the middle, operation points continuously change, and fixed curing facilities cannot be adopted; and in addition, the field of the beam prefabricating pedestal is limited, the steam curing facilities are not easy to arrange, reasonable steam curing mode and facilities need to be adopted, the number of UHPC segment prefabricated box beam curing facilities is large, accurate control is required, operation can be conducted not only by manual work, an efficient control system is adopted, the curing quality is improved, and the labor cost is lowered.
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Description

technical field

[0001] The invention relates to the field of ultra-high performance concrete (hereinafter referred to as UHPC) maintenance, in particular to a combined UHPC maintenance method. Background technique

[0002] UHPC is mainly composed of cement, silica fume, fly ash, water reducer, quartz sand, steel fiber and other materials; it is constructed according to the principle of maximum compactness, and the pores between material particles are filled with materials with smaller particle sizes, so that The pores and micro-cracks inside the material are minimized; it has ultra-high strength and excellent durability due to its high density. The dispersed steel fibers in UHPC can greatly slow down the expansion of micro-cracks inside the material, so that UHPC has ultra-high toughness. Coarse aggregates are not added to UHPC, and the cement used is of high strength grade and large amount, and the heat of hydration and shrinkage are also large; especially for large-volume...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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