Method for improving apparent mass of clear concrete by utilizing wood fiber paster
A technology of fair-faced concrete and apparent quality, which is applied in the direction of ceramic molding machines and manufacturing tools, and can solve problems such as inability to be widely promoted, high overall cost, and difficulty in sticking firmly.
Inactive Publication Date: 2010-07-14
GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG +1
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Problems solved by technology
[0002] At present, the fair-faced concrete formwork process generally adopts formwork paint and pastes PVC boards, but the formwork paint is easy to deteriorate and is not easy to apply evenly, and the formwork cleaning takes man-hours; PVC boards have high hardness, so it is not easy to stick firmly, especially when the formwork has lead angles and It is difficult to paste without joints in the arc, the construction process is cumbersome, and the surface of the PVC board is easy to scratch, the number of recycling is limited, and the overall cost is high, so it cannot be widely promoted at present
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[0017] Such as figure 1 As shown, the thickness is 0.1 ~ 0.2mm, the surface density is 90 ~ 130g / m 2 , 2h water absorption rate of 2.0% to 2.5% wood fiber stickers. Before pasting the wood fiber stickers, the base of the template should be cleaned and dried, then the wood fiber stickers should be cut into the size of the template design, and pasted directly on the surface of the template that has been cleaned. be driven out to prevent the film from bulging. After the stencil sticker is pasted, protective measures should be taken to ensure that the sticker surface is clean and free from damage. Then, hoist the formwork and install it. When hoisting and installing the formwork, prevent the film from being scratched and stained. Then pour the concrete, and avoid the vibrator from touching the formwork wall during the concrete vibration process, so as not to damage the formwork sticker. After demoulding, if the surface of the wood fiber sticker is damaged, it can be torn off a...
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Abstract
The invention belongs to the technical application filed of constructional engineering, in particular to a method for improving the apparent mass of clear concrete by utilizing wood fiber paster. The invention aims to improve the apparent mass of clear concrete and prepare clear concrete with good apparent effect. In the invention, natural fibers such as cotton pulp, wood pulp and the like are selected to be as raw materials to be processed into wood fiber paster the molecular chain of which has micro permeability, is similar to semipermeable membrane, has strong resistance on oil solvent, basic solvent and organic solvent, has no generation of static electricity and strong easy decomposability, does not self-absorb dust, is not deformed under high temperature of 190 DEG C, and does not pollute environment. The paster has good air permeability, flexibility and strength and excellent crocking resistance, thus eliminating bubble on the surface of concrete, and reducing bubble quantity on the interface of the concrete and template paster and on the surface of the concrete so as to improve the apparent mass of clear concrete.
Description
technical field [0001] The invention belongs to the application field of construction engineering technology, in particular to a method for improving the apparent quality of fair-faced concrete by using wood fiber stickers. Background technique [0002] At present, the fair-faced concrete formwork process generally adopts formwork paint and pastes PVC boards, but the formwork paint is easy to deteriorate and is not easy to apply evenly, and the formwork cleaning takes man-hours; PVC boards have high hardness, so it is not easy to stick firmly, especially when the formwork has lead angles and It is difficult to paste without joints when it is curved, the construction process is cumbersome, and the surface of the PVC board is easy to scratch, the number of recycling is limited, and the overall cost is high, so it cannot be widely promoted at present. Wood fiber stickers are soft in texture, not only can achieve seamless pasting, but also have simple construction technology, lo...
Claims
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IPC IPC(8): B28B11/04
Inventor 钟建锋钱亮陈晓芳刘娟红宋少民
Owner GUANGDONG PROVINCIAL CHANGDA HIGHWAY ENG