MAIN MODIFICATIONS OF READY MIX CONCRETE STATIONS HAVING MODULAR-BLOCK LINE-UP

The paper considers a new BNTU development that is concrete complexes having modular-block design. The modular-block approach presupposes to divide the whole technological chain for production of concrete and mortar mixes into separate sections (modules), each of which performs specific functions and can be used separately and independently of others. Then it is necessary to select such set of modules that ensure production of concrete and mortars. The paper presents designs of main modules in the technological chain for preparation of concrete mixes: a concrete mixing module, a storage and supply module of inert materials, a storage and supply module of cement and a number of additional auxiliary modules (a concrete supply module, a module for preparation of chemical additives, an operator module and a module for preparation and supply of air).

Two main modifications of ready mix concrete stations developed on the basis of modular-block principle using basic modules are given in the paper. The first modification is a stationary concrete-mortar complex characterized by high productivity, large reserves of aggregates and cement, ability to be operated in winter due to heat insulation and water heating system and inert materials. The second modification is a transportable option that permits to transport the station from place to place due to reduction of time required for its installation and removal and execute production of concrete mixtures in the vicinity of the object construction. This options provides the possibility to reduce expenses on concrete transportation to the place of its deposit and decrease the probability of deterioration of consumer properties of the concrete mix that in its turn entails reduction in final cost of the object construction and improves quality of the construction.

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