CZ9519U1 - Mortar for bonding building elements, in particular thermal sound insulation boards - Google Patents

Description

BACKGROUND OF THE INVENTION

Lime and / or cement-based mortars are generally used for joining building elements. gypsum, as a binder, as well as dredges based on dredged or sieved sand and water in various proportions according to the purpose of use.

The malt faults are generally satisfactory, but they do not form a homogeneous unit with respect to the thermal and acoustic insulating properties of the insulating components, in particular of the plate-like shape.

During the production, transport and handling of mortar, workplaces and means of transport are relatively polluted.

Also the demands, especially in respect of quality mortars, are quite high, both in terms of 15 binders and grinders, whose natural resources are diminishing and also pose environmental problems, such as the reclamation of gravel, sand pits, etc.

The essence of the technical solution

According to the technical solution, Malta aims to eliminate, or at least substantially reduce, the aforementioned drawbacks of paper waste applications, in particular non-recyclable waste of laminated paper, as well as the readily available cheap alum, i.e. a NaAl (SO ₄ ) ₂ composition. 12H ₂ O or NH ₄ Al (SO ₄ ) ₂ . 12H ₂ O or KA1 (SO ₄ ) ₂ . 12H ₂ O.

The essence of the mortar according to this technical solution is that it has the following composition:

pulped waste paper latex alum hydrated aluminum sulfate lime hydrate residue (water) up to 90 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 6 to 26 wt.

From the environmental and cost point of view, mortar according to the technical solution is very advantageous, in which waste laminated paper which is practically non-recyclable and which is incinerated or deposited in controlled waste dumps in a costly manner is used as the starting material of the pulped waste paper. Waste paper and pulped waste paper also include waste laminated paper and pulled laminated paper.

It is also possible to use a mixture of pulped laminated and non-laminated waste paper.

Examples of technical solution

When collecting large quantities of suitable paper, particular attention should be paid to its origin and original use. This minimizes the risk of paper waste coming into contact with the substance from a hygienic point of view. If a sufficient amount of waste paper classified into groups according to the fillers and binders contained therein is collected, the waste paper of that group is homogenized and pulled.

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Homogenization is accomplished by cutting the waste paper on a shredder-like device and mixing it thoroughly. Then the pulping is started. 10 to 20 wt. water until the loose fibers form a thick slurry having a content of 80 to 90 wt. dry matter. Then, the resulting raw material is mixed with latex, alum, i.e., hydrated aluminum-sodium sulfate, hydrated aluminum sulfate, and lime hydrate. By weight, the above-mentioned mortar components according to the technical solution are in the ratio:

pulped waste paper with water with a dry matter content of up to 20% by weight;

latex alum hydrated aluminum sulfate lime hydrate residue (water) up to 90 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 6 to 16 wt.

The ratio of the mortar mixture components depends on the type of waste paper according to the fillers and binders contained therein and is operably varied within the above limits as required by the quality and quality of the mortar mixture.

Example 1 - Mortar composition using waste paper with carbonate filler pulped waste paper 80% latex 4% alum 3% hydrated aluminum sulphate 2% lime hydrate 1% residue (water) 10% total 100%

Example 2 - Mortar composition using laminated waste paper with kaolin filler and other clay materials

pulled waste paper 75% latex 5% alum 1% hydrated aluminum sulphate 1% lime hydrate 3% rest (water) 15% total 100%

Example 3 - Mortar composition using low-fill laminated waste paper and binders pulped waste paper 74% latex 5% alum 3% hydrated aluminum sulphate 4% lime hydrate 4% residue (water) 10% total 100%

In all the examples, the pulp waste paper is 80-90% by weight, the rest being water.

Latex, alum and hydrated aluminum sulphate are used in the mortar mixture - mortar - as a binder and also as an emission absorber, ie a substance preventing leakage of any other undesirable substances that

-219 9519 Ul can accidentally get into the waste paper. Alum and hydrated aluminum sulfate also serve as a flame retardant. When both compounds are treated with heat, they decompose and release large amounts of water vapor. It expels oxygen from the material and prevents further combustion. At the same time, hydrated aluminum sulphate hinders conditions suitable for the growth of unwanted molds and fungi.

Calcium hydrate is important for binder quality.

The produced mortar is filled into suitable transport and storage containers and transported to a warehouse or shipped directly to the user.

Industrial applicability

According to the technical solution, with a dominant content of pulp waste paper 10, Malta can be used both in the industrial and private sectors, for construction works and modifications of existing buildings. As a binder for insulating building elements, energy savings are achieved by avoiding heat loss and improving sound insulation. In addition, waste paper, in particular the practically worthless laminated material that has been used up to now, is recovered, which has either been incinerated or landfilled.

Claims (2)

PROTECTION REQUIREMENTS CLAIMS 1. A structural element bonding compound having the following composition: latex waste paper 20 alum hydrated aluminum sulphate lime hydrate residue (water) especially thermal sound insulation boards, 70 to 90 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 1 to 21 wt. 6 to 26 wt. Mortar according to claim 1, characterized in that the starting raw material of the pulped waste paper 25 is laminated waste paper and / or non-laminated waste paper. 30 End of Document