CN2268081Y - Pervious formwork - Google Patents

Abstract

The utility model relates to a water permeable mould plate, which belongs to a construction apparatus. The water permeable mould plate has structures that the surface of the general mould plate is glued with one layer of drainage plate, and then, the surface of the drainage plate is glued with one layer of water filtering materials. The drainage plate is provided with a one-way drainage passage; through making use of capillary actions, the excess moisture and the air which are cast by concrete can be discharged in time, and the early strength and the compactness of the concrete are increased.

Description

Permeable template

Template when the utility model relates to concrete pouring belongs to the construction equipment.

Wooden form commonly used, steel form, plywood form during present domestic concrete structure construction, this class template all be closely knit, permeable, gas permeability is bad, can not get rid of free water after making concrete pouring.

The purpose of this utility model provide a kind of can make concrete pouring after draining more smooth, can improve the permeable template of early age strength of concrete.

Permeable template of the present utility model is to paste the last layer band drain at template surface commonly used, pastes one deck filtering material (see figure 1) again on the surface of band drain.The single slope drainage passage is arranged on the band drain, utilize capillarity excessive moisture after the concrete pouring and air in time can be drained, improve concrete early strength and compactness.

Illustrate that accompanying drawing is as follows:

Fig. 1 is the utility model permeable template sectional drawing.

Fig. 2 is the band drain sectional drawing.

Accompanying drawings embodiment is as follows:

The utility model permeable template (see figure 1) is to paste on the surface of template (1) (punching block, large form, wooden form, bamboo-wood plywood) commonly used to go up band drain (2), pastes filtering material (3) on the surface of band drain (2) again.The available plastic draining board of band drain (2), its section is the zigzag (see figure 2), the available nonwoven of filtering material (8) or other seepy materials.The band drain available epoxy is pasted, and filtering material can be used 502 glues.

Because concrete contacts with filtering material, so can improve concrete surface appearance greatly.Plain concrete surface after the form removal is beautiful neat.As then can be used for the plain concrete construction of various effect of decorative patterns, (for example plain concrete surface of wood grain effect) with the filtering material nonwoven of decorative pattern (as be printed on) that is printed on decorative pattern.

Adopt permeable template of the present utility model to make:

1. in the internal pressure of newly-laid concrete, the capillarity of filtering material on the template reaches shake and smashes Under acting in conjunction, water and bubble in the concrete are shifted to the surface by inside concrete, and logical Micropore on the filtered water material and the passage on the drain bar are discharged, and make concrete from surface to a depthkeeping The ratio of mud in the degree descends, and improves concrete surface strength, particularly early strength.

2. because the discharge of moisture content and air, reduced the generation of concrete surface and internal flaw, reduce ratio of defects (original template 3.1%, permeable template 0.3%), improved concrete compactness, make cement granules rest on concrete surface and form fine and close hardened layer, improve concrete surface appearance greatly, improved concrete durability, frost resistance, reduced carbonization of concrete speed.

3. under the condition that does not add any Admixture, pour into a mould, can make concrete early strength than improving 30% with template commonly used.

4. owing to simple in structure, compare, reach same effect, can reduce operating expenses greatly with external similar templates.

Claims (2)

1, a kind of permeable template is characterized in that pasting the last layer band drain on the surface of template (punching block, large form, wooden form, bamboo-wood plywood) commonly used, pastes the last layer filtering material on the surface of band drain again.

2, according to the said permeable template of claim 1, the section that it is characterized in that band drain is a zigzag.

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