A method of manufacturing concrete products in the field

 

The invention relates to the field of construction, namely the manufacture of precast concrete in the field using a variety of carriers to accelerate the hardening of concrete. Effect: reduce the unit cost of manufactured products. The method involves filled with concrete and rebar forms and curing of concrete with obtaining concrete products. Thermococci tightly interconnected in a production line, within which is mounted a conveyor intended for travel forms. On top of fermoselle installed on electroisolator heating Elements in the lower part of fermoselle installed pipe, designed to circulate hot water or steam. The sides of fermoselle isolated from the environment, and the front side is configured to input and output forms. The internal volume of fermoselle made with the possibility of messages with a source of heated air and/or fuel gas and water, and curing the concrete mixture, the internal volume of fermoselle heated using at least one of the specified fluids. 6 C.p. f-crystals, 1 Il.

Izaberete edocfile for making any concrete products in the field using a variety of carriers to accelerate the hardening of concrete.

A known method of manufacturing a flat concrete construction items (US patent 2524683) using a device containing a horizontal frame chassis, the matrix inside the frame for movement in a vertical plane, the loading platform and the guide plane, on which is mounted a hopper.

The disadvantage of this method should recognize the lack of heating of the concrete mixture during the molding of concrete products, due to lack of fluids. In addition, the product range is limited only flat structures.

Also known is a method of construction, technical repair and/or reconstruction of buildings and structures (RU, patent 2010095). According to a known method (see example 1) tear off the pit for the Foundation, perform macadam preparation, concreted base, install formwork for monolithic foundations concreted Foundation, mount the ceiling over the Foundation and erect the elevated design of reinforced and precast concrete manufactured on the construction site or at the factory, and in the manufacture of precast elements to the construction site of ustanavlivau method should recognize the absence of heating of the concrete mixture in the process of hardening, which leads to an increase of the period of hardening and deterioration of quality in the cold season of concrete products.

The technical problem to be solved by the proposed method is to develop ways of creating elements precast concrete under field conditions in the temperature range from -60oC to +30oWith throughout the year.

The technical result obtained by the implementation of the proposed method is to reduce the unit cost of fixed assets on a unit of production relative to the unit value of the factory products.

To achieve the technical result of the proposed use of the method of manufacturing of concrete products in the field, including filled with concrete and rebar, at least one form and hardening of concrete with obtaining concrete products. According to the proposed method form, filled with rebar and concrete, post, at least one thermococci, consisting of upper and lower parts, between which is placed the form installed in her rebar and filled with concrete. On top of fermoselle installed on electroisolative pair. The sides of fermoselle isolated from the environment, with the face side of fermoselle made with the possibility of input and output forms, and the internal volume of fermoselle made with the possibility of messages with a source of heated air and/or fuel gas and water intended for generation of steam in the amount of fermoselle by burning a combustible gas. In the process of hardening of the concrete mixture, the internal volume of fermoselle heated using at least one of the specified fluids. Preferably the lower part of fermoselle set using jacks using metal and concrete of the footing on a solid substrate, usually with the possibility of regulating the distance of each corner of fermoselle relatively solid Foundation. Mainly footprint of fermoselle is 2.5 m x 8.0 m Preferably thermococci do with the possibility of a tight connection with each other, while when connecting two or more thermococci in a production line (usually, not more than twenty-eight pieces) inside the lines set conveyor designed to move the forms, filled with rebar and concrete. However, option realish from each other, moreover, the volume of each thermococci isolated from the environment. When using steam for technological line for the production of precast concrete products usually additionally establish a system for collection and removal of condensed steam, and mostly above mentioned system of collection and removal of condensed steam connected to the steam generation in termasuklah. In a preferred variant of the method for curing the concrete mixture in the internal volume of fermoselle burn the combustible gas in the atmosphere sprayed water. This results in qualitatively steamed reinforced concrete structures.

The drawing shows a cross section of the used thermococci. In the drawing, the following notation is used: top 1, bottom 2, the heating Elements 3, steel pipe 4 for supplying hot water and steam, the tool 5 with hot air tool 6 the supply of combustible gas, means 7 water supply in the amount of fermoselle.

The proposed method is suitable for the production of concrete products in the field regardless of weather and temperature conditions and can be used, in particular, in liquidation of consequences of natural disasters (zemletryasene is. Its versatility lies in making possible the manufacture of many types of concrete products in the field conditions at the construction site and to use different carriers to accelerate hardening of the concrete, and as heat transfer fluids can be used with electricity, hot water, steam, hot air, combustible gases or products of combustion of solid or liquid fuels.

In a preferred variant of the method used thermococci, preferably having square bases 2.5 m x 8 m, installed in a single process line. The number of thermococci in the specified process line depends on the number of manufactured products and the project construction schedule. Preferably, the line contains 28 thermococci. Design separate thermococci allows you to connect them to virtually isolated from the environment technological line with the gateway that allows you to load the form with rebar and concrete mixture at the inlet of the processing line, as well as with the gateway, allowing you to unload the form with concrete product at the output of the production line. The gateway can be made in the form of a sheet of thick rubber, closely adjacent to the end surface is irowiki forms from the input gateway throughout the process. Each of the used thermococci consists of two parts: lower and upper. The lower part is installed on a solid substrate and exposed on level four jacks. On the inner surface of the upper part of fermoselle mounted heating Elements attached to electroisolator, preferably representing asbestos-cement pipe with a diameter of ~ 150 mm In the lower part of fermoselle mounted steel piping, preferably ~ 159 mm, connected to the distribution piping to connect the hot water or steam. In any case the implementation of the method wall thermococci, preferably the side and bottom, insulated with heat insulator, preferably mineral wool 60 mm thick to reduce heat loss. The upper and lower parts of fermoselle form a common space. The hot air supplied into the space between the upper and lower parts of fermoselle with a temperature of approximately 120oC. For heating air is preferably used furnace aerodynamic heating capacity of about 5000 m3/h each. Heated air serves evenly through insulated duct and regulate its flow inside thermosets the wrapped loop. As the heat can be used hot water, preferably having a temperature of from 70 to 130oC. Mostly hot water supply system is closed in the loop including the hot-water system using any source of heat. As the heat can be used steam supplied on these steel pipes as hot water, and steam pressure is usually 3 ATM. When using steam as the heat production line additionally equip kondensatootvodchiki, condensate gathering tanks and a pumping unit for returning the condensate to warm up in thermostate.

It is most preferable to use as the coolant supplied in the amount of fermoselle combustible gas and water, sprayed into the volume thermococci to produce steam. For feed use are installed inside thermococci piping with nozzles feed. Burned in the amount of fermoselle fuel gas moves water sprayed into the vapor state, and the combined effect of the resulting steam and heat from the combustible gas results to obtain the maximum effect of accelerating the hardening of the concrete mix.

The method will be further discussed n undomestic blocks of 0.83install the valve, fill the form with concrete mix and in turn put them in a production line, comprising 28 thermococci. Previously on the steel pipe located at the bottom of fermoselle, pumped hot water to the specified temperature, while before the launch of the first completed forms in a production line, the temperature inside line 84oC. Through 5.4 hours from the last thermococci technological lines removed first shape formed with the base block.

When used as a carrier of electricity, natural gas, hot water and steam production line capacity from 28 thermococci is approximately 60 m3concrete products per day, and when used as a coolant hot air to 30 m3concrete products per day.

The method allows to produce in the field of thin-walled armobeton products retained formworks, ceiling and walls, as well as the construction of exterior panels, balconies, Elevator shafts, etc. that allows you to save the consumption of laminated plywood, used in the manufacture of formwork in the factory. Preferred Varian capacity of up to 16 tones can be assembled in one day with commissioning on the second day. In addition, the application of the method helps to avoid the breakage of the finished structures during transport from the factory to the building site, and also to reduce the use of heat transfer fluids. The specific value of fixed assets per unit of manufactured products against manufacturing plant is reduced by about 19%. Design thermococci allows them to be used for a period of not less than 7 years when the payback period of not more than 2 years.

Claims

1. A method of manufacturing concrete products in the field, including filled with concrete and rebar, at least one form, the placement of the specified form in fermoselle, consisting of upper and lower parts and sides isolated from the environment, and the internal volume of fermoselle made with the possibility of messages with a source of heated air, and hardening of concrete with obtaining concrete products, characterized in that thermococci tightly interconnected in a production line, in which is set a conveyor designed to move the forms, filled with rebar and concrete, on top karenanne for swinging hot water or steam, the face side of the line is performed by the input and output forms through the locks, and the internal volume of fermoselle additionally perform with messages with a source of combustible gas and water, and curing the concrete mixture, the internal volume of fermoselle heated using at least one of these carriers.

2. The method according to p. 1, characterized in that the lower part of fermoselle set on a solid Foundation.

3. The method according to p. 2, characterized in that the lower part of the section being installed with the possibility of regulating the distance of each of the solid angles relative to the base.

4. The method according to p. 1, characterized in that the base area of fermoselle 2.58,0 m

5. The method according to p. 1, characterized in that when using a pair on the production line additionally establish a system for collection and removal of condensed steam.

6. The method according to p. 5, characterized in that the above mentioned system of collection and removal of condensed steam connected to the steam generation in termasuklah.

7. The method according to p. 1, characterized in that the curing of the concrete mixture in the internal volume of fermoselle burn fuel

 

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