CZ9517U1 - Concrete mix for roofing and other construction materials - Google Patents

Description

Concrete mixture for the production of roofing and other construction materials

Technical field

The technical solution relates to a concrete mixture for the production of roofing, especially roofing tiles or other lightweight construction materials.

BACKGROUND OF THE INVENTION

The roof tiles used so far are made from traditional brick mixtures. In recent years, concrete roofing tiles made from a mixture of ordinary compacted concrete consisting of cement, water, natural aggregates and the usual concrete additives have been used more and more frequently, in particular to improve its workability, frost resistance, water tightness and rate of solidification, possibly even dye. Such concrete roofing tiles have a bulk density in the range of 2200 to 2600 kgm &^lt; ³ > and certain values of strength and toughness, water absorption and frost resistance.

The disadvantage of classic roof tiles is their fragility. The disadvantage of the previously known concrete roofing tiles is their high weight. This causes excessive load on the roof structures, so they must be designed for higher loads. Handling of heavy bags, their transport etc. is also a problem.

The essence of the technical solution

The above-mentioned disadvantages are largely eliminated by the concrete composition according to the invention, which comprises, in addition to cement, water, the usual additives for improving the workability and water-tightness of the concrete and possibly the dyes, a light artificial or light natural aggregate or a mixture of light aggregates.

The advantage of the concrete mixture according to the technical solution lies mainly in the physical and mechanical properties of the final products (roofing, especially roofing tiles). It is mainly the lower bulk density of products, their lower water absorption and higher frost resistance, with comparable strength and toughness.

Examples of technical solution

Example 1

The concrete mixture for the production of roofing, especially roofing tiles, is prepared in such a way that per 100 parts by volume of the mixture there are 70 parts by weight of light artificial aggregate of expanded clay of fractions 0 - 1 mm, 1 - 2 mm and 2 - 4 mm. 8 mm and 30 parts by volume of cement, which consists of 350 kg per 1 m ^{3 of} concrete mix, water and the usual concrete additives and dye at 12 kg per 1 m ^{3 of} concrete mix.

Example 2

The concrete mixture for the production of roofing, especially roofing tiles, is prepared so that per 100 parts of the mixture there are 70 parts of light artificial aggregate of expanded glass of fractions 0 -1 mm, 1-2 mm and 2-4 mm, or 4- 8 mm and 30 parts by volume of a mixture consisting of cement, water and conventional concrete and coloring agents in the amounts indicated in Example 1.

Example 3

The concrete mixture for the production of roofing material, especially roofing tiles, is prepared in such a way that per 100 parts by volume of the mixture there are 70 parts by volume of light artificial aggregate from sintered

Ashes of fractions of 0-1 mm, 1-2 mm and 2 - 4 mm and 4-8 mm, respectively, and 30 parts by volume of a mixture consisting of cement, water and the usual concrete and dye additives in the amounts given in the example 1.

Example 4

The concrete mixture for the production of roofing, especially roofing tiles, is prepared in such a way that per 100 parts by volume of the mixture there are 70 parts by weight of light natural aggregate of foamed lava of fractions 0 - 1 mm, 1-2 mm and 2 - 4 mm or 4- 8 mm and 30 parts by volume of the mixture consisting of cement, water and the usual additives for concrete and coloring agent in the quantities given in Example 1.

Example 5

The concrete mixture for the production of roofing, especially roofing tiles, is prepared so that per 100 parts of the mixture there are 75 parts of light artificial aggregate of expanded clay of fractions 0 - 1 mm, 1-2 mm and 2-4 mm, or 4-8 mm and ordinary natural aggregates of fractions of 0-1 mm, 1 - 2 mm and 2 - 4 mm, or 4-8 mm, and 25 parts by volume of the mixture consisting of cement, water and the usual additives for concrete or dye. The amount of lightweight aggregate in the mixture is 45 parts by volume per 100 parts by volume. The cementation rate is 300 kg per 1 m ^{3 of} concrete mixture, the additive and dye is 13 kg per 1 m ^{3 of} concrete mixture Example 6

The concrete mixture for the production of roofing material, especially roofing tiles, is prepared in such a way that per 100 parts by volume of the mixture there are 70 parts by weight of light natural aggregate of foamed lava of fractions 0 - 1 mm, 1 - 2 mm and 2 - 4 mm. 8 mm and ordinary natural aggregates of fractions 0-1 mm, 1-2 mm and 2 - 4 mm, or 4-8 mm, and 30 parts by volume of the mixture consisting of cement, water and the usual concrete additives or colorants in the quantities specified in Example 1. The amount of lightweight aggregate in the mixture is 45 parts by volume of 100 parts by volume of the mixture.

Example 7

The concrete mixture for the production of roofing material, in particular roofing tiles, is prepared so that per 100 parts by volume of the mixture there are 70 parts by volume of a mixture of light artificial aggregate of expanded clay and light natural aggregate of foamed lava of fractions 0 - 1 mm, 1-2 mm and 2 - 4 mm or 4 - 8 mm and ordinary natural aggregates of fractions 0 - 1 mm, 1 - 2 mm and 2-4 mm, or 4-8 mm and 30 parts by volume of the mixture, which consists of cement, water and the usual additives The amount of the mixture of light artificial aggregate and light natural aggregate in the concrete mixture is 45 parts by volume of 100 parts by volume of the mixture, the proportion of light artificial aggregate being 25 parts by volume of 100 parts by volume of the mixture.

Industrial applicability of technical solution

The concrete mixture for production of roofing according to the technical solution is usable in the production of building materials, especially roofing. Products from this mixture can successfully replace traditional brick products as well as the currently used concrete roofing. It can also be successfully used for the production of other building elements, such as lightweight tiles or strips, facade strips, cladding boards, window sills, lightweight exterior panels for various construction applications, garden and park architecture elements.

Claims (3)

PROTECTION REQUIREMENTS Concrete mixture for the production of roofing, consisting of aggregates, cement, water and, where appropriate, conventional additives for concrete and dyes, characterized in that 100 to 100 parts by volume of the mixture contains 20 to 85 parts by volume of aggregate selected from the group 5 comprising lightweight artificial aggregates with bulk density up to 1200 kgm ³ and grain density up to 2000 kgm ^-3 and / or light natural aggregates with bulk density up to 1200 kgm ³ and grain density up to 2000 kgm ³ and / or conventional natural aggregate, 15 to 80 parts by volume of a mixture of cement, water and possibly additives for concrete and dyes, the aggregate has a grain size of 0.01 to 8 mm, the amount of cement is at least 180 kg per 1 m ^{3 of} concrete 10 and the amount of conventional concrete and / or colorant additives is up to 17.5 kg per m ^{3 of} concrete mixture.