DD208142A1 - METHOD FOR PRODUCING COMPONENTS OF LIGHT CONCRETE - Google Patents

Abstract

The invention relates to a method for the production of lightweight concrete elements with grain and heap spores, which allows, inter alia, the use of lignite ash as the only additive component with low cement consumption. In particular, fine-grained mineral substances without hydraulic healing ability are formed on granulation plates with water to spherical granules and umhuellt with cement paste. After hardening and drying, the structure of the lightweight lightweight concrete consists of punctiform bonded cement blocks with encapsulated fillers of earthy texture and air pores.

Description

iitel dor invention

To convalescents to. icTatellunn of cauelenenten cue lightweight concrete

/.mvondungcijobiet eggs invention

The invention relates to a process for the production of high-density concrete with grain and oil for indoor and outdoor walls.

Characteristic of the known technical solutions Пеі for the production of lightweight concretes with low bulk densities from relatively heavy inorganic aggregates, it depends on to create as many as possible of your cavities. For example, in gas and foam concretes, geranium densities can be achieved by bloating mixtures consisting of custards, binders, water, and chemical additives. These processes require thermal energy in the form of water vapor or high process temperatures, such as the production of clay and slate as light carbon tetrachloride Fe ,

However, it is also known that mixtures of flour-like raw materials and binders can be formed into granules with water and encased in cement (DE 2243113).

Object of the invention

The aim of the invention is to develop a method which makes it possible to produce cheap cement-bonded pigs made of lightweight concrete. In doing so, the approval of üraunkohlcnaschc as the only

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Stovfkomponente and a minimal Zementverbraüch be guaranteed with minimal technological effort. On the strength of the components no high demands are made.

Explanation of reading the invention

In contrast to the bekonnten process according to the invention, the fine-grained additive and binder Teilchon not mixed, but used separately for the formation of spherical granules, and cement binder used to build a stotiscli supporting skeleton of punctiform cemented Zernentsteinhohlkugeln that after r.ustroclcnung the 'building elements the fillers contain inert cake dust and air, which is only used as an aggregate component with no or low hydraulic disintegration, there is no risk of distortion of drift cracks, because chemical reactions of the binder with volatile constituents of the binder on contact points remain bounded on the inner surfaces of the Kugelschalcn of cement stone and the shells are much harder hurry ciid encapsulated cores.

In spite of the large surface area of the very fine aggregate, the method makes it possible to minimize the zenith consumption, as is the case with the birch buckwheat, with overfertilisation. The higher the micronizing fraction, the more water is required for granulation and advantageously increases the grain porosity after the components have dried.

embodiment

Dry brown coal ash, optionally nachgefeint in a ball mill and moistened, is supported on granulating. By spraying with water form

wet granules of about peas or pomegranates powdered with zone. The thus prepared with Zeiiicntleim granules are, for example, in Formenküsten с roßfоrnc. pour Vi'andbr.uoteine. The zinc citrate hardens in the open air, and the oil contained in the oil evaporates, and, on the other hand, this cement produces an inconcrete concrete with grain and iron spores. LEs can also be obtained by a correspondingly dry granulation with v, "iii _L '.'. 4VJl; or reached ѵіогсіогі, dc" c ± c r.iit thin _ o on t t versch versch versch versch versch Atrfhaldunn in! Lauvwer !, which do not strengthen nitrate, can be processed into a double-layered, multi-gondola, as a light-concrete slab, by a hydraulic cinderit and by a free-fall to douclomont, or for monolithic skins.

Claims (1)

L г find u η σε a η claim A process for the production of CauGlementen from Leichtboton with grain and HoufiVGrUsporen, characterized in that in particular fine flour mineral substances without hydraulic Erhärtungsverrnögen with water in suitable devices are formed into spherical Grenelion and coated with cement paste.