CN1038084A

CN1038084A - The manufacture method of foamed concrete and goods thereof

Info

Publication number: CN1038084A
Application number: CN 89102879
Authority: CN
Inventors: 张标成
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-04-29
Filing date: 1989-04-29
Publication date: 1989-12-20

Abstract

The invention discloses a kind of is main foaming raw material with Expandable Polystyrene (EPS), and adding potassium hydroxide, carpenter's glue, rosin and water, be mixed with whipping agent by a certain percentage, whipping agent and cement, river sand and water mix the prepared foamed concrete in back and can be directly used in the cast building and make various cement products.Advantage such as its goods have that light weight, ultimate compression strength height, thermal conductivity are low, heat insulation, sound insulation, insulation, leakproof, fire prevention, humidity resistance are good, the cast and the interior wall that are specially adapted to roof heat-insulating leakage-proofing layer are for building, when being used for the freezer body of wall, good insulation effect can be arranged.

Description

The manufacture method of foamed concrete and goods thereof

The present invention relates to a kind of manufacture method of foamed concrete, particularly a kind of with the manufacture method of Expandable Polystyrene (EPS) as the foamed concrete and the goods thereof of whipping agent.

Being generally used for architectural concrete, is to mix together slurry with cement, Sha Jiashui, and then makes various prefabricated components or whole building ramming.This method cost height, the load-bearing of buildings flooring are big, thereby will strengthen basic design, and poor performance such as heat insulation, sound insulation.In recent years, domestic and international a kind of foamed concrete of new development, its method has two: one, and employing adds aluminium powder and produces hydrogen in concrete, form bubble, inside is vesicular after making concrete formation, adopt this method because the aluminium powder resource is subjected to certain limitation, and the cost height, so use range is very limited.Another kind method is to adopt the foaming agent for preparing in advance to add in the concrete to stir foaming.Produce the goods at end in this way, its ultimate compression strength height, pore are even, and the foaming agent its raw material source extensively, its key issue is that selected foaming agent wants raw material to be easy to get, and cost is low, technology is easy, quality of item is good.The application number that Japan applies in China is 85106754 and 85107041 patent of invention, will add with the calcium aluminate in the making processes of its foamed concrete is the accelerated cement compound of major ingredient, but this cement is less in China's production quantity, and price is higher, is difficult for promoting.And number of patent application is 85100902 invention, and the preparation of its composite expanding agent then need form at 1400 ℃-1600 ℃ temperature lower calcination, and energy consumption is big.Application number is 87103036 patent of invention, be to adopt method such as oil plant infusion to make foam-based material, also need add the composite reactive gelling material for preparing in advance and setting accelerator before stirring and will in 30 ℃, stir earlier mixing with cement, sand, its goods need leave standstill in autoclave 4 hours, and composition and technology are all complicated.

The purpose of this invention is to provide and a kind ofly be the foamed concrete of main foaming raw material and goods thereof, make that it has that technology is simple, cost is low, good product performance, be easy to construction etc. and be purpose with Expandable Polystyrene (EPS) (EPS).

The present invention is achieved in that it comprises the preparation of whipping agent and processing and forming technology two parts of foamed concrete and goods thereof.In the preparation of whipping agent, at first, in container, add Expandable Polystyrene (EPS) (EPS) 1000 grams, under 10-20 rev/min stirring velocity, be heated to 147 ℃-160 ℃, stirred 0.5-1.5 hour, and after EPS all melts, added 1000 milliliters of potassium hydroxide (solid) 1 gram, pure water, continue to stir, make behind its three's thorough mixing the EPS potassium solution.Press EPS potassium solution 10-20 gram, carpenter's glue (solid) 30-40 gram, potassium hydroxide (solid) 5-10 gram, rosin (solid) 30-35 gram then, the ratio of water 400-500 milliliter, add in the container successively, under 50 ℃ of-70 ℃ of temperature, stirred 1 hour, stirring velocity is 10-20 rev/min, abundant dissolving after-filtration, the EPS whipping agent.

The processing and forming technology of foamed concrete and goods thereof: get EPS whipping agent 1000 grams and place stirrer, got blisters 10-15 minute with 180 rev/mins stirring velocity, make it produce countless uniform bubbles, then bubble liquid is poured in the hollander, under 60 rev/mins stirring velocity, add 200 kilograms of Portland cements, 100 kilograms in children river sand, 50 kilograms in water, continue to stir 10-15 minute, the foamed cement slurry, can be directly used in the cast of flooring or body of wall, or slurry is poured in the mould of the specification that varies in size, through 24-36 hour do certainly, after the demoulding the fragment of brick and the prefabricated component of various models.Technical process as shown in Figure 1.The goods that the present invention is made, its volume density are 0.56 gram/cubic centimetre, and cold crushing strength 7Kgf/ cubic centimetre, thermal conductivity are 0.16W/mk.

Pouring piece of the present invention and goods have premium propertiess such as light weight, heat insulation, sound insulation, protection against the tide, leakproof, fire prevention, insulation, bubble in the goods is evenly dense, owing to have withstand voltage height, thermal conductivity hangs down the characteristics with light weight, thereby make buildings reduce the load-bearing load greatly, be specially adapted to do the cast of roof heat-insulating leakage-proofing layer and make the fire-proof sound insulation of interior wall, heat insulation usefulness.Be used for freezer and make interior wall, can receive than make the better effect of thermal insulation material with porous plastics.The present invention has also that cost is low, the simple advantage of production technique.

Embodiment:

In container, add the EPS1000 gram, under 10-20 rev/min stirring velocity, be heated to 158 ℃, stirred 1 hour, after the whole fusions of EPS, add 1000 milliliters of potassium hydroxide 1 gram, pure water, continue stirring, to three's thorough mixing the EPS potassium solution.Then in EPS potassium solution 20 gram, carpenter's glue (solid) 35 grams, potassium hydroxide (solid) 10 restrain, rosin (Gu) 32 restrain, the ratio of 500 milliliters in water, add material in the container and be heated to 60 ℃ of stirrings, speed is 10-20 rev/min, stirs 1 hour, leave standstill after the filtration the EPS whipping agent.Getting EPS whipping agent 1000 grams places whisking machine (180 rev/mins) to get blisters 15 minutes, then bubble liquid is poured in the stirrer, under 60 rev/mins stirring velocity, add 200 kilograms of cement, 100 kilograms in young river sand, 50 kilograms in water, stir after 10 minutes the foamed cement slurry, can be directly used in the cast of body of wall or floor or pour into and make various foamed cement goods in the mould.

Claims

1, a kind of by cement, river sand, water and whipping agent formulated foamed concrete and goods thereof, it is characterized in that described whipping agent is at first to use expandability polyphenyl second (EPS) 1000 grams, potassium hydroxide 1 gram, pure water to be mixed with the EPS potassium solution for 1000 milliliters, in the ratio of EPS potassium solution 10-20 gram, carpenter's glue 30-40 gram, potassium hydroxide 5-10 gram, rosin 30-35 gram, water 400-500 milliliter, form the EPS whipping agent then.

2, foamed concrete according to claim 1 and goods thereof, it is characterized in that whipping agent at first is to be mixed with the EPS potassium solution for 1000 milliliters with Expandable Polystyrene (EPS) (PES) 1000 grams, potassium hydroxide 1 gram, pure water, in the ratio of 500 milliliters of EPS potassium solution 20 grams, carpenter's glue 35 grams, potassium hydroxide 10 grams, rosin 32 grams, water, form the EPS whipping agent then.

3, a kind of by cement, river sand, the production technique of formulated foamed concrete of water and whipping agent and goods thereof, after it is characterized in that in container, adding Expandable Polystyrene (EPS) (EPS) 1000 grams, stir (10-20 rev/min) and be heated to 147-158 ℃ (0.5-1.5 hour), treat to add potassium hydroxide (solid) 1 gram after the EPS fusion, pure water continues for 1000 milliliters to stir, make the EPS potassium solution, add the EPS potassium solution then in proportion, carpenter's glue, potassium hydroxide, rosin, water stirred (10-20 rev/min) 1 hour in 50 ℃-70 ℃, move into and stirred at normal temperatures in the whisking machine 15 minutes, stirring velocity is 180 rev/mins.

4, a kind of by the prepared foamed concrete of cement, river sand and whipping agent and the production technique of goods thereof, it is characterized in that the EPS whipping agent after getting blisters is placed stirrer, and add cement, river sand, water and stirred (60 rev/mins) at normal temperatures 10 minutes, make the foamed concrete slurry.