It article contains information about mathematical models which taking into account more factors affecting on the performance of logging trucks. Presenting the methodical approach that allows engineers to make management decisions that control of forest real-time and determination: the optimal composition of logging trucks, their technical and economic indices, charts of wood hauling, the volume of construction, reconstruction and maintenance of logging roads, the costs for these purposes and etc.

Keywords: Automobile forest transport, logging truck, haul road, scheduling, performance of the logging truck.

The paper proposes a mathematical model of inter-symbol distortion compensation data transfer status RAT distillation devices using vector-matrix transformation. 
Keywords: mathematical model, the inter-symbol distortion distilleries RAT operator transfer and interaction Preemphasis vector.

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The technique of forming a two-stage system of transportation that allows you to determine the optimal location and number of transfer stations. Feature of the technique is the possibility of adapting the system generated to local conditions investigated territory. 
Keywords: municipal solid waste, transportation process, land category, sanitary - protective zone, range of accommodation, critical distance.

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Investigate ways to improve the efficiency and sustainability of organizational and technical systems for small and medium-sized businesses in the construction, through a systematic approach to organizing the process of functioning.
Keywords: small business, small businesses, construction, system approach, business process, S-shaped development.

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Statement of the problem. Preparation of high-strength foam concrete in construction allows for energy and resource conservation. Water covers more than 50% of their dense component and on its properties depend strongly on structural properties of foam concrete, is not fully explored.
Results. The effect of mixing water of low temperature on the structure and properties of constructive penofibrobetonov. Recommendations on the account in the calculation of reinforced concrete elements elevated structural properties and deformation diagrams penofibrobetonov by mixing water setback.
Conclusions. Using low temperature mixing water improves the structure, increases the strength, deformability and elastic modulus, as well as changes of the deformation diagram fibropenobetonov.
Keywords: fibropenobetona, foam, water temperature mixing, macroporosity, economic efficiency, technical and economic assessment.

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The results of studies of the effect of complex polyfunctional additives consisting of superplasticizer stabilizer and redispersible powder on strength and shrinkage of cement paste.
Multiplicative model is developed, with which is possible to regulate the formation and development of deformation strength compositions for various compositions of dry building mixes. Dependencies describing the influence of the complex polymer additives on the formation and development of the deformation strength of cement stone. The functions of the coefficient values ​​depending on the dosage used additives.
Keywords: dry mortar, cement stone, additives, modifiers, superplasticizer additive stabilizing effect, redispersible polymer powders, strength, shrinkage deformation.

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