MANUFACTURE OF PAVING TILES IN HOME
The technology for the production of paving slabs is quite simple. You can perform it at home. For the manufacture of paving slabs, fairly affordable equipment will be needed. Judge for yourself, the most expensive thing you have to buy is a concrete mixer. Vibrostol can be made with your own hands. Forms for tiles will have to be bought, but today they are not as expensive as before. A good form of quality material can be bought at a price of $ 1 apiece. The price of the form is determined by the quality of the material, the size and design style of the form itself. To fully complete the line, you need to purchase a pick shovel, a good metal bucket of 10 liters, flights that will be covered with finished tiles, rubber gloves for safe operation. When you have a completely complete line for the production of paving slabs, you can purchase and deliver raw materials for the production of:
cement grade not lower than A-W-400;
grease for molds.
The production cycle itself can be divided into several stages:
preparation of plastic molds;
preparation of colored concrete;
daily vibrocasting process;
formwork and new form preparation.
Next, we consider the process of manufacturing paving slabs in detail. Define the profitability of the business and the payback period.
Paving slabs are manufactured according to a simple technological process.
Simple technological process for the production of tiles for sidewalks. Preparation of molds before manufacturing vibrocast products. Paving slabs are made on simple equipment:
Here is a detailed instruction for the manufacture of concrete products by vibrocasting. At the beginning of the production cycle, it is necessary to prepare molds for filling. It is better to use plastic forms. The technology provides for the nuances in the molding and dismantling of vibrocast products. Before manufacturing, we lubricate the molds with a special lubricant for high-quality formwork. Lubrication also adds mold life to 500 cycles and more. Lubricated molds should be washed after stripping before the next casting. This is also very important. For beginners, it is better to purchase a special lubricant. If you wish, you can do the lubrication yourself. But here it is important to clearly guess the proportions. Lubricant for plastic molds do so. 50 grams of motor oil should be diluted in 1.5 liters of water. Shake such a mixture very well and for a long time. Experiment carefully with the proportions of the lubricant. It is important for you to choose the perfect balance of fat content. Too greasy lubricates your entire batch. After very greasy lubrication, sinks in the tile are obtained. Such paving slabs are more like a shell. Weak grease in the grease will not give the proper effect when stripping. After lubricating the molds, concrete can be prepared.
Components for concrete. Preparation of components for the preparation of concrete. Before preparing the concrete mix, it is required to prepare the concrete mixer itself. With a bucket of water, rinse the nutria concrete mixer. Be sure to pour water. The walls where the concrete will be mixed should be wet. For the manufacture of paving slabs it is necessary to make half wet concrete. Its strength and the duration of exposure of the products in the molds depend on this. Wet walls will better mix the composition of concrete and will not allow the concrete mixer to become heavily clogged with mortar. Next, prepare a plasticizer and concrete dye. The plasticizer should be 0.5% of the amount of all components of the solution in dry form. For 40 liters of concrete you will need 200g. plasticizer. In no case should you add a plasticizer in a dry form. It must first be cooked. Dilute 200g. plasticizer in 1 liter of hot water 70-80 degrees Celsius. Water must always be hot so that the plasticizer dissolves well. While chopping well in hot water from a measuring cup, add plasticizer powder in small portions. Precipitation must not be allowed; it must dissolve well. Next, we prepare the pigment dye of concrete. The percentage of the dye should be at least 2% of all components in dry form. If you make high-quality paving slabs, you can not save on dye. You should get a saturated color of concrete, which will keep its shade for years. Pigment dye is quite expensive and many are trying to keep the cost of production due to savings at the expense of plasticizer. But such an approach is not justified. In a year or two, the tile will lose its color. Two years after the rain, the wet tile will look like new, but in a dry state the colors are almost invisible. To justify saving dye, it is better to use two-layer filling technology. Half fill forms with colored concrete and immediately colorless. Such a tile will be even stronger.