DE401866C - Process for the production of lightweight building blocks - Google Patents

Description

Process for the production of lightweight building blocks. The production of peat bodies from crushed peat using high pressure and at or binders that harden after pressing are known. One has as a binder lime and gypsum have already been used. That quicklime has a destructive effect on putrefactive bacteria caused by the reaction that occurs when the quicklime is extinguished, is the case with wood fibers also already known.

Recovered peat contains about 90 percent water, namely 20 percent capillary water, ie easily liquid pressable water, and 70 percent colloidal water, ie that part of the water in which the peat is swollen. This colloidal water cannot be squeezed off; it can only be removed by destroying the colloidal structure of the peat, up to now only by drying it in the air for a long time up to about 20 percent.

When making building blocks from peat, it is important to have a Destruction of the colloidal structure and thus an elimination of the colloidal water to achieve.

This colloidal structure or the expansion force inherent in the peat is now according to the present invention by treatment with quick lime and plaster of paris canceled.

This mixture and the heat it generates becomes colloidal The structure of the peat is advantageously destroyed.

As a result, building blocks with high insulation properties (soundproof and heat-safe) and great strength and durability with inexpensive production created that are suitable for the erection of entire buildings and ceiling structures are.

An example implementation of the new method is as follows: The plates are made in the size of So # 33i / s # 5 cm, so that six Stones go to one square meter.

For the production of such a plate the following is required: 2 kg of peat are torn or ground and then moistened well with 10% of water and processed into a pulp., 1 kg of quick lime is added to the pulp thus produced, i kg of white clay or kaolin too. Possibly 1/2 kg of plaster can also be used for the purpose of faster Processing and binding are added.

The pulpy mass is then mixed well and put into an iron mold desired size of the plate according to introduced. The form then comes under a press, whereupon the plate is pressed together under strong pressure.

The stone then remains during the deletion process of the i @ tzka: lke under pressure for a short time, so that the peat inherent as a result of the colloidal water Expansion force is canceled. The plate is then removed from the mold and is now finished and ready for transport.

To keep the surface of the slab roughened and also around the stone To make it suitable for cleaning purposes, the pressing can be done by interleaving Rapper take place.

The one produced by the new process Building block is light, cheap, soundproof and insulated. In particular, however, he lets himself be Process exactly like any other building block, for example cinder block, pumice stone and also plastering.

Claims (1)

PATENT CLAIM: Process for the production of building blocks using of pressing pressure and binding agents hardening during or after pressing, characterized in that that the pulp made from water and crushed peat destroys the half the amount of quicklime and gypsum is added to the colloidal structure of the peat, and that on that, during the process of extinguishing the quick lime, the stone is in a mold pressed under strong pressure and left to stand, sq that the result of the peat the expansion force inherent in the colloidal water is canceled.