DD157791A1 - METHOD FOR PRODUCING COLORED DRY MOORERTEL - Google Patents

Abstract

By combining cement and dry Sekundaerrohstoffen and with the addition of color and / or Splittbeimengungen a method for producing a colored Trockenmoertels has been invented, which is used for colored facing layers and weather shells in housing and society and for use as facing concrete for paving slabs and Verkehrsflaechen , The process ensures the shelf life of dry mortar over a longer period of time and prevents the otherwise occurring color differences by using homogeneous and dry secondary raw materials (for example foundry sand and lignite filter ash) over a longer period of time.

Description

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Title of the invention

Process for the preparation of colored dry mortar

field of use

Dry mortar for housing and community building as well as for floating screed, and. Concrete in road construction or for the production of colored pavement slabs

Characteristic of the known technical solutions

The production of plaster and weather bowls in housing and company construction takes place in the individual slabs using pits moisture, gravel, cement, and color additives and the required addition of water. The possibility of a longer storage time does not exist. The mortar so prepared must be used immediately. Furthermore, the production of plaster is known., Which is due to its composition and cost exclusively for facade design use and which is made on the basis of cement, lime, dried sand or granite flour, dyes and other additives, such as marble powder, · In the production of pathways and colored paving slabs, the production of mortar prefabricated using peat-moist sand, grit, cement and paint additives with the addition of 'mixing water with immediate processing of the mortar produced.

Object of the invention

Ea is a process for producing a colored dry mortar and facing concrete using secondary raw materials, cement and color additives to develop with the aim to use them for colored facing layers and weather shells in housing and civil engineering as well as facing concrete for traffic surfaces universal.

Explanation of the essence of the invention

Concrete is predominantly used in modern construction and civil engineering as well as in transport construction. It is absolutely essential to color residential areas and residential areas for architectural relaxation. The new process is essentially characterized by the fact that the combination of cement, dry secondary raw materials such. B _e 'foundry sand and lignite filter ash as well as color and / or grit admixtures produces a colored dry mortar that is storable and universally applicable'.

5 to 20% cement,;

20 to 40 % lignite filter ash and. 40 to.75 % foundry sand

and with the addition of color additives that a colored dry mortar is achieved with strengths ^ = 20 Mpa after 28 days and ^ 15 Mpa after 6 h isothermal treatment. In individual cases compressive strengths up to 30 Mpa were achieved after 28 days. , '

The production of colored Wohnwegflachen in screed or «floor screed using Betonverflässigem is also possible with the achieved dry mortar. It is known that in the normal concrete manufacturing process (wet mixing and immediate processing) colored weather shells are made using "sand, cement and paint additives." This process requires high capital expenditures in

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each. Concrete and plate works.

The conversion from normal concrete to paint additives "or from one color character to another Farbcharche requires discontinuity in the concrete production process, since in the mixing plants both grain concrete (normal mortar) and colored mortar must be mixed ·

The application of the current colored mortar production causes undesirable color differences, which occur when using sand, due to the natural Parbunterschiede of the sand by layer storage in the pit. The invented process guarantees the application of the color mortar or concrete by one manufacturer to several concrete and plate works. It thus saves otherwise required investments in all plants (special mixing stations). The process ensures the shelf life of dry mortar over a longer period of time and prevents the occurring Parbunt seemed by Eins.atz the longer time homogeneous and dry secondary raw materials, foundry sand and lignite filter ash. If necessary, the process guarantees a uniform color. , ,.

Due to an overcapacity of natural and colored dry mortar, the need to meet individual needs. urgent needers of the housing and society building as well as the repairing.

Claims (5)

Erfiridungsanspruch 1 to 15% color additions, based on the cement content will be produced. 1. A process for the production of a colored dry mortar for colored facing layers and Y / etterschalen in Y / oh ~. ning and civil engineering and for use as facing concrete for pavement slabs and traffic areas using secondary raw materials, characterized in that a mixture of 5 to 20% cement,
20 to 40 % lignite filter ash, 40 to 75 % foundry sand and 2 «method according to item 1, characterized in that a thermal treatment of the colored mortar during processing is possible * 3 »method according to item 1 and 2, characterized in that under specification of said mixing ratio also Splittbeimischungen can be up to 20 % , so that the production of washed concrete is possible» 4 »Method according to item 1 and 2, characterized in that are produced by a subsequent application of colored chips on the trimmed mortar surface weather bowls in the colored knocking plaster» 5. The method according to item 1, characterized in that colored liquid screed can be prepared with the addition of concrete plasticizers.