CN1218736A

CN1218736A - Oil-free concrete isolating agent and its producing method

Info

Publication number: CN1218736A
Application number: CN 97119493
Authority: CN
Inventors: 张文义
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-29
Filing date: 1997-11-29
Publication date: 1999-06-09
Anticipated expiration: 2017-11-29
Also published as: CN1076262C

Abstract

The oil-free concrete isolating agent contains rosin, caustic soda, adhesive, densifier, suspending agent, lubricant and water as well as maybe anti-freezing agent for winter use, and it is produced through the steps of base liquid preparation, densifier preparation, adhesive preparation and mixing while stirring. It is non-toxic, pollution-less, fast in filming speed, non-contaminate to concrete surface and steel reinforcement and without impair to the bond strength between concrete and steel bar and the adhesion of plaster.

Description

Oil-free concrete isolating agent and production method thereof

The present invention relates to the concrete interleaving agent, is a kind ofly to be used for construction and to touch nothing oil interleaving agent and the production method thereof that plays buffer action between plate and the concrete.

At present, mostly select oily interleaving agent (releasing agent) in the construction between template and concrete for use, as used oil, saponified oil, oil emulsion or the like, this interleaving agent isolation effect is good, but there is following shortcoming: the one, easy pickup reinforcing bar influences the bond stress between reinforcing bar and the concrete, influences Structural Engineering and component quality, the 2nd, easily pollute workman's clothing and trick, be difficult to remove; The 3rd, easily be sticky with concrete surface, influence quality and construction benefit that Structural Engineering and component decoration are plastered.

The purpose of this invention is to provide a kind of oil-free concrete isolating agent and production method thereof, to solve the easy pickup reinforcing bar of oily interleaving agent, influence the bond stress between reinforcing bar and the concrete, influence Structural Engineering and component quality, easily pollute concrete surface, influence quality and construction benefit that Structural Engineering, component decoration are plastered; Easily pollute workman's clothing and trick, be difficult to shortcomings such as removing.

The object of the present invention is achieved like this: adopt rosin, caustic soda, water, adhesive, thickener, suspending agent, lubricant, formulated to form, also dosed antifreezing agent to winter, component content following (weight ratio part):

Rosin 3--5, caustic soda 0.5--2, adhesive 8--15, thickener 3--6, suspending agent 35-50, lubricant 35--50, water 250-350, antifreezing agent 8--15.

Its production technology comprises: select materials, base fluid preparation, thickener preparation, adhesive prepares, be mixed, add suspending agent, stir, add lubricant and antifreezing agent, stirring, detection, packing are put operation in storage.Be stirred in the heatable stirred vessel.

A, base fluid preparation comprise: select materials, be mixed, add thermal agitation, constant temperature operation.Heating-up temperature is 90--100 ℃, constant temperature 10--15 minute.

B, thickener preparation comprise selects materials, adds water, stirring, stand for standby use, leaves standstill 12--24 hour.

The preparation of c, adhesive comprise select materials, add water, stir standby.

Suspending agent: adopt precipitated calcium carbonate or attapulgite.

Lubricant: adopt OK powder, talcum powder.

Antifreezing agent: adopt anhydrous sodium sulfate or sodium chloride.

The oil-free concrete isolating agent the key technical indexes:

1, proportion 1.10--1.20

2, viscosity 〉=18

3, solid content (%) 〉=20

4, covering power (g/m ²) 120

5, pH value 9--10

6, drying time (min)≤40

7, every m ²Consumption (g/m ²) 110--130

8, adaptive temperature (℃) more than-5 ℃

This invention compared with prior art has the following advantages: 1) no oil is not sticky with reinforcing bar, and the bond stress between reinforcing bar and the concrete is unaffected; 2) template, concrete platform, loose tool all there is not corrosiveness; 3) product is nontoxic, tasteless to human body, environmental nonpollution; 4) to concrete structure engineering, the prefabricated components no any pollution in surface, pargeting bonding jail, construction benefit height; 5) easy to use, film forming fast drying, easy-clear; 6) the raw and processed materials source is wide, and cost is low.

Below in conjunction with embodiment technological process is described further:

Fig. 1 process chart.

Specification:

1, selects materials: rosin powder shape material.

Caustic soda: purity is the product more than 96%;

Adhesive: select for use vinyl acetate acetal latex or TG glue, JSF any;

Thickener: select for use starch, carboxylic acid methyl cellulose, bentonite any;

Lubricant: select for use OK powder, talcum powder any;

Suspending agent: select precipitated calcium carbonate or attapulgite for use;

Antifreezing agent: select anhydrous sodium sulfate or sodium chloride for use.

Embodiment one weight proportion (part)

Rosin 3, caustic soda 2, carbonic acid fine particle calcium carbonate 50, carboxylic acid methyl cellulose 5, JSF 12, water 330, talcum powder 40.

Specification:

1, select materials rosin, purity reaches 98% above powder-material.

Caustic soda, purity are the sheet material more than 96%;

The JSF solid content is more than 10%;

Carboxylic acid methyl cellulose Grade A;

Precipitated calcium carbonate fineness 〉=260 orders;

Talcum powder fineness 〉=300 orders.

2, base fluid preparation: get 3 parts of rosin, 2 parts of heating containers of putting into belt stirrer of caustic soda, add 30 parts of stirrings of water and be mixed, be heated to 90--100 ℃ simultaneously, then constant temperature 10-15 minute standby.

3, thickener preparation: get the carboxylic acid methyl cellulose and put into container for 5 parts, 100 parts in the warm water of adding more than 60 ℃ left standstill after stirring 20 hours, stirred well even standby then.

4, adhesive preparation: get 12 parts of JSFs and put into stirred vessel and add 200 parts in water, it is standby to stir.

5, be mixed: base fluid, thickener and the adhesive of operation (2), (3), (4) preparation are poured in the stirred vessel stirred, add 50 parts of carbonic acid fine particle calcium carbonates then, add 40 parts of talcum powder after stirring again, it is qualified that the back that stirs is detected, just can pack warehouse-in, pack available barreled.

This does not have the environment temperature that oily interleaving agent is suitable for above zero and uses.

Example two, weight proportion (part):

Rosin 3, caustic soda 2, carbonic acid fine particle calcium carbonate 50, carboxylic acid methyl dimension dimension element 5, JSF 12, talcum powder 40, sodium chloride 8, water 330.

Its production technology is with example one

This does not have oily interleaving agent and is suitable for using more than winter-5 ℃.

Example three weight proportionings (part):

Rosin 5, caustic soda 2, attapulgite 40, carboxylic acid methyl cellulose 6, vinyl acetate acetal latex 8, talcum powder 50, water 350.

The adhesive preparation: get 8 parts of vinyl acetate acetal latexes, put into stirred vessel and add 60 parts in water, it is standby to stir.

The base fluid preparation: process only is that proportioning is changed into 5 parts of rosin, 2 parts of caustic soda, added 50 parts in water with example one.

Thickener preparation: process is with example one, only is that to change 6 parts, water into be 120 parts to carboxylic acid methyl cellulose consumption.

Suspending agent preparation: get attapulgite and put into stirred vessel for 40 parts, add 120 parts in water, put into colloid mill after stirring again and grind standby.

Other manufacturing technique method is with example one.

In above-mentioned example one, two prescriptions, adhesive prepares hourly water consumption and reduces 50%, just can be made into the concentrated type interleaving agent, so that one times water is converted in transportation again when use in the building site, stirs evenly and can use.

Claims

1, a kind of oil-free concrete isolating agent composition contains rosin, caustic soda, water, adhesive, thickener, suspending agent, lubricant and water, also adds antifreezing agent winter.It is characterized in that: rosin 3--5, caustic soda 0.5--2, adhesive 8--15, thickener 3--6, suspending agent 35--50, lubricant 35--50, water 250--350, antifreezing agent 8--15 (weight ratio part).

2, no oily isolating agent composite according to claim 1 is characterized in that: weight proportion part:

Rosin 3, caustic soda 2, carbonic acid fine particle calcium carbonate 50, carboxylic acid methyl cellulose 5, JSF 12, talcum powder 40, water 340.

3, no oily interleaving agent according to claim 1 is characterized in that: weight proportion part: rosin 5, caustic soda 2, attapulgite 40, carboxylic acid methyl cellulose 6, vinyl acetate acetal latex 8, talcum powder 50, water 350.

4, no oily interleaving agent according to claim 1 is characterized in that: anti-freeze type prescription (weight ratio part):

Rosin 3, caustic soda 2, carbonic acid fine particle calcium carbonate 50, carboxylic acid methyl cellulose 5, JSF 12, talcum powder 40, water 330, sodium chloride 8.

5, its production technology of a kind of oil-free concrete isolating agent is characterised in that: comprise select materials, base fluid preparation, thickener preparation, adhesive prepares, be mixed, add suspending agent, stir, add lubricant and antifreezing agent, stirring, detection, packing are put operation in storage.Be stirred in the heatable stirred vessel.

6, production technology according to claim 5 is characterized in that: the base fluid preparation comprises: select materials, be mixed, add thermal agitation, constant temperature operation.Heating-up temperature is 90--100 ℃, constant temperature 10--15 minute.

7, production technology according to claim 5 is characterized in that: thickener preparation comprises to be selected materials, adds water, stir, leave standstill operation, leaves standstill 12--24 hour.

8, production technology according to claim 5 is characterized in that: the adhesive preparation comprises selects materials, adds water, agitating procedure.