How to open a manufacturing
For manufacture of concrete products the following raw material is required:
Х portlandconcrete 500 Љ.0 (GOST 10178-85); Х sand;
. From one form for a labour shift it is possible to receive 80-120 products. For this purpose it is necessary to organize correctly a workplace, namely: one concrete mixer in volume not less than 1 ь.ъєс. On two vibrotables (replaceable productivity will be accordingly equal 160-240 panels, that is equal 960 $-1200 $ under the Russian prices for protections); wooden pallets, for the beginning pieces 150-200; premise(Room) the area of 200-300 m. sq.; capacities for storage of cement; water, electricity.
Quantity(Amount) of workers (at presence 2 vibrotables):
1 person - on a concrete mixer;
4 persons on vibrotables.
In a stock in a warehouse ф.. 1 ’†Ќ sand (4 m. a cube.) and 1 cyclone of cement (7 m. a cube.) (at work of two т/tables). Now about profitability. The cost price of one panel (at the program 100 piece in change) makes approximately 2,0 $, the sale price ready on the Russian regions is equal to production 6-11 $. The important factor in any manufacture is the raw material. It is confident, that for the manufacture you can provide delivery of cement, sand and armature without effort. The manufacturing techniques of panels, columns of a protection and some small forms look as follows. The concrete mix (cement - sand in the ratio 1:2, 1:2.5) is pawned by shovels in form preliminary greased with special structure (a mix . Fuel and the fulfilled oil about the automatic device. Boxes of transfers in the ratio 1:4-1:5) also it is condensed on vibrotable 10 sec., then the armature welded(cooked) in a skeleton is pawned. After that overturn the form and the formed product spread on the wooden pallet. Pallets with products are established on an equal floor in stacks, covered with a film. Time of the making of products on the pallet - day (at ™ = + 15 degrees and are higher) In day a finished article is removed from the pallet, in vertical position is transferred to a warehouse. Up to full making of products 28 days, but, as a rule, are necessary for concrete for 10-th day the product can be transported and established. I want to add, that the given manufacture still more some accompanying clauses(articles) of the income, namely: basically, all customers of fences buy it(him) with a condition of installation of protections (90 % of all orders), and expenses for installation minimal (payment by the worker and transport); further there is a necessity of painting of a ready fence (10 % of all orders); manufacturing of a metal gate, entrances, lattices, etc. Requirements to industrial shop: observance ;
good ventilation;
maintenance with the minimal heat during winter time. Acording with government:
under the Belarus laws the license for manufacture of concrete protections and installation of a fence in height up to two meters is not necessary (basically order protections in height 1,5ь - 2 ь). it is periodically necessary to carry out(spend) tests for durability, water resistance and frost resistance in the certificated laboratory.
The "know-how" of small architectural products.
(way - 1)
1. To disassemble the form.
2. To grease it with solidol.
3. To collect.
4. To prepare for a concrete mix:
(1 part of cement, 3 parts of sand, 1 part of rubble or elimination of fraction of 5-10 mm).
5. To put the form on vibrotable, to include vibrotable.
6. To fill in the form concrete it is necessary in the fine portions, thus, shaking the form in the different parties(sides) to reduce hit of air between a wall and a concrete surface.
7. Process of making a products occurs in the form. It types(collects) a set of durability from 1 about 3 day, depending on conditions of an environment (temperature, humidity)
8. Then the form understands and after extraction of a finished article is cleared.
(way - 2)
Preparation of a solution.
- carefully to mix sand with cement (’-500) in the ratio 1:2,5 on "dry";
- to add in a mix of water with the help of aerosol dispersion (the mix remains dry, but at pressing by a hand it is rumpled). To mix. - to sift a mix through a sieve with a cell no more than 10 mm, to get rid from pieces and once again to mix. The mix is ready to be formed. FORMING.
The form before formation should be absolutely dry (to grease with nothing). It will relieve you of sticking a solution to the form. - to put the form on a flat support (it is possible on a pressed wood) impregnated with water-repellent structure; - to place in the form an insert;
- to fall asleep the prepared solution in the fine portions and to condense it(him) with the help wooden ёЄєя¬;
- after full filling the form to take an insert, to open the form and to place a finished article in the closed premise(room) (in a warehouse "stones" it is possible to stack in stacks) where conditions for making concrete products are created; - after end of work the form is necessary for washing and carefully to dry.


