![]() ![]() These platforms are initially expensive and need to be replaced when damaged in daily work. Platforms are needed to move the blocks produced.A relatively small space is required for production.The slab is expensive and its dimensions must be according to the production. A fairly large concrete slab is required for production.No platforms are required for the transfer of the produced blocks.The following describes the main advantages and disadvantages of Laying and Stationary machines, excluding plants: The productivity of these machines, depending on the block type, can range from 12.000 to 20.000 blocks in 8 hours. The transfer of the blocks is carried out by a transfer system, usually through conveyors. These machines they have batch processing, automated concrete mixing and pressing systems. The blocks are placed on a wooden platform and then transferred to the floor by the operator. The vibrator improves the quality of the blocks. Manual with vibrator of 1 or 2 moulds: they are manual machines that produce blocks of 1 or 2 moulds. Manuals: these are manual machines that produce blocks at low cost. Any type of hollow blocks can be manufactured. The mould and piston move through hydraulic cylinders. The blocks are placed on a wooden platform and then moved to the floor by the workers. ![]() Hydraulics: these are stationary machines that produce concrete blocks. Any type of mould can be mounted on the machine. This procedure eliminates the need for block handling platforms and manipulators that usually move the green blocks and machine platform before the next blocks can be manufactured. ![]() The blocks are placed on a concrete floor and the machine is moved by the operator to the next laying. It is perfect for the start-up of small-scale block manufacturing. Manuals: these are manually executed machines that produce blocks at low cost. Picture 1 – rometa – hydraulic layerer (). An example of these machines is shown in Figure 1. Any kind of hollow blocks can be manufactured with good quality as well as solid bricks and pavers. The mold and piston move through hydraulic cylinders, creating a much stronger block and allowing the manufacturer to use less concrete. This process eliminates the need for wooden or steel platforms. They place the blocks on a concrete floor and then move to the next position where the new blocks will be placed. Hydraulics: these are wheeled machines that produce concrete blocks. There are two leading manufacturers of these machines, the People’s Republic of China and the Republic of India.įollowing the information consulted, block making machines can be classified as follows: 1. Classificationįrom the reviewed references it is known that block making machines are manufactured in both developed and developing countries. The production of blocks also seeks to partially replace a technology that is deeply rooted in our society for the construction of housing that is based on the common brick of fired earth, made with a non-renewable resource and with the effects on the environment that its production brings. The characteristics of the current concrete blocks will be presented afterwards. A variety of raw materials can be used to produce thousands of concrete units, in different sizes and shapes. Today, concrete blocks are produced virtually all over the world due to their high quality and the demand for economical building materials. patent for “Concrete Block Molding Machinery” in 1887, although there are further patents for other types of machines such as Eichelberger’s in 1905. The appearance of the blocks (potser posaria the blocks appearance) that are known today was established when Harmon S. However, no references to the first block layer were found. ![]() In 1868, a builder named Frear founded what could be considered the first stationary plant to build concrete blocks on the American continent. Several decades later, in 1860, hollow concrete blocks began to be used for wall construction. Solid concrete blocks were first employed in 1832 by the builder William Ranger in England, who patented his version of “Ranger’s Artificial Stone”. The modern concrete block manufacturing industry is not the result of a gradual evolution but was abruptly driven by the invention of a machine with adjustable removable moulds capable of producing solid blocks. ![]()
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