A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a temporary bridge material. The preparation method of the temporary bridge material comprises: weaving and molding 38-42 parts by weight of carbon fiber, and putting the obtained product into a die; mixing 40-45 parts by weight of a flexible epoxy vinyl ester resin with 5 parts by weight of a curing agent, adding 10-15 parts by weight of a nanometer carbon fiber material, mixing the obtained mixture while performing stirring, and pouring the obtained product into a mould; by means of stepped warming, elevating the temperature to 90 degrees and the pressure to 65 kilograms, and keeping the temperature and the pressure for 8min for uniform pressing; elevating the temperature to 120 degrees and keeping the temperature for 10 min; continuously elevating the temperature to 160 degrees and keeping the temperature for 30 min; cutting the power off, reducing the temperature to room temperature, and taking the obtained product out of the die; and performing calcination, polish, and surface repair to prepare a board for a temporary bridge. By adopting a carbon fiber composite, the temporary bridge material is high in strength and light in mass, has flexibility and machinability as a textile fiber, and is easy for compounding. The temporary bridge material is anisotropic and is large in design degree of freedom, and can be subjected to design according to a plurality of schemes to satisfy the requirement of properties of different products.
The invention provides a temporary bridge material. The preparation method of the temporary bridge material comprises: weaving and molding 38-42 parts by weight of carbon fiber, and putting the obtained product into a die; mixing 40-45 parts by weight of a flexible epoxy vinyl ester resin with 5 parts by weight of a curing agent, adding 10-15 parts by weight of a nanometer carbon fiber material, mixing the obtained mixture while performing stirring, and pouring the obtained product into a mould; by means of stepped warming, elevating the temperature to 90 degrees and the pressure to 65 kilograms, and keeping the temperature and the pressure for 8min for uniform pressing; elevating the temperature to 120 degrees and keeping the temperature for 10 min; continuously elevating the temperature to 160 degrees and keeping the temperature for 30 min; cutting the power off, reducing the temperature to room temperature, and taking the obtained product out of the die; and performing calcination, polish, and surface repair to prepare a board for a temporary bridge. By adopting a carbon fiber composite, the temporary bridge material is high in strength and light in mass, has flexibility and machinability as a textile fiber, and is easy for compounding. The temporary bridge material is anisotropic and is large in design degree of freedom, and can be subjected to design according to a plurality of schemes to satisfy the requirement of properties of different products.
Temporary bridge material
XIAO ZHONGYUAN (author)
2016-01-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME