SU992492A1 - Method for making construction products - Google Patents

Description

(54) ATP: ABOUT FORMING STARTER PRODUCTS

The invention relates to the building materials industry. Rf can be used in the layering of building products with a directed macrostructure in building industry plants.

There is a known method of forming articles with a honeycomb structure, which includes layered layering in the form for the entire thickness of a large aggregate formable product in the form of spherical granules of the same diameter with subsequent filling of the entire volume between the granules with a curing bonding material 1.

The disadvantage of this method is that the binder used should have an increased ductility. But an excess of the solvent leads to an increase in the porosity of the bore binder material and a decrease in the strength of the product.

There is also known a method of molding building products with a directed microstructure, including layering, compaction of a construction solution with a roller with the formation of holes and the placement of filler 2 in them.

The disadvantage of this method is the lack of a strong bond between the mortar and the aggregate and the mortar layers with each other due to excessive compaction of each layer, which reduces the strength of the product.

The aim of the invention is to increase the strength of the products.

ten

The goal is achieved by the fact that according to the method of forming building products with a directed macrostructure, including layering and compaction of building materials

15 of the mortar with the formation of holes and placement of a filler in them, compaction of the X1 layer of the layer makes forging paths with a force of 20-100 tons / cm, and upon completion of the construction

20 solutions produced vibropressing of all layers.

The method is carried out as follows.

Samples of 15x15x15 cm are made of hard, fine-grained cement-sand concrete and expanded clay gravel.

At the bottom of the form, a layer of fine-grained cement-sand tone is laid, evened out in it with a stamp with

with a force of 20-100, hemispherical wells are formed into which ceramsite granules of a fraction of 18-20 mm are placed with a shape factor of 1-1.1 and a bulk weight of 550 kg / m. A subsequent layer of fine concrete is then laid and the operations are repeated. After laying the top 24, 5

15

a layer of fine-grained concrete billet is subjected to vibropressing with (pressing force 0.3-30 kg / cm, depending on the brand on the strength of coarse aggregate granules.

Examples of the method are summarized in table. 1-3.

Table

Claims (2)

; 18.9 N - | Displacement of granules during the filling of the upper layer of binder, defect of the directional structure As can be seen from the tables, the proposed method allows to increase the strength of concrete products with a directed macrostructure by increasing the adhesion of mortar layers to the aggregate and increase the quality of products by eliminating the delamination of concrete. The invention of the method of forming strongholds with a directed macrostructure, including layering and compaction of mortar . Continuation of the table. 3 19.8 There are no defects of the directed structure. 20.9 Same 60 80 100 21.6 21.9 21.0 120 The contact of the granules vertically 21, 5 120 potassium (the vertical distance between the granules is not maintained) with the formation of holes and the placement of a filler in them, characterized in that, in order to increase the strength of the product, each layer is compacted by "pressing with a force of 20- 100 g / cm, and at the end of laying the mortar, all the layers are vibrated. Sources of information taken into account in the examination 1. German Patent 2554890, cl. From 04 To 43/00, 1976. 2. Authors svedetelstvo USSR 700490, cl. C 04 B 15/00, 1979 (prototype).