Experimental Research of Building Materials Based on the Natural Cellulosic Fibers under Biogenic Acidic Exposition

2015 ◽  
Vol 1 (5) ◽  
pp. 250-254
Author(s):  
Adriana Eštoková ◽  
Alena Luptáková ◽  
Martina Kovalčíková ◽  
Nadezda Stevulova
Keyword(s):  
Experimental Research ◽  
Building Materials ◽  
Cellulosic Fibers

scholarly journals Modeling the composition of fine-grained modified concrete elaborated with vibropressing technology

2019 ◽  
Vol 298 ◽  
pp. 00133 ◽  
Author(s):  
E. R. Pyataev ◽  
A. Y. Ushakov
Keyword(s):  
Portland Cement ◽  
Experimental Research ◽  
Frost Resistance ◽  
Building Materials ◽  
Road Construction ◽  
Average Density ◽  
Optimal Composition ◽  
Fine Grained ◽  
Main Components ◽  
Modifying Additive

The article analyzes the property requirements of small-piece products used in road construction, specially those related to water and frost resistance. It describes the main features of the vibration technologies involved in the manufacture of building materials, in particular, paving slabs. The article presents conclusive results, obtained through scientific research, which allow us to establish the influence of both, the costs of the main components and the parameters of vibration compression, on the properties of the final product. Combining the analysis of classical methods with the results of experimental research, a methodology has been developed for reaching an optimal composition of fine-grained vibropressed concrete modified with active additives. It is shown that the particular strength achieved from the combination of vibroformed fine-grained concrete, whose average density is 2270–2320 kg/m3, with polymer multifunctional modifiers, is mainly due to the use of Portland cement, a modifying additive, and the pressure conditions employed during the experiment..

scholarly journals Characterization of Manmade and Recycled Cellulosic Fibers for Their Application in Building Materials

2019 ◽  
Vol 7 (11) ◽  
pp. 1121-1145
Author(s):  
Nadezda Stevulova ◽  
Viola Hospodarova ◽  
Adriana Estokova ◽  
Eva Singovszka ◽  
Marian Holub ◽  
...  
Keyword(s):  
Building Materials ◽  
Cellulosic Fibers

The Rationalization of Parameters of the Sucion Intake Device for Packed Bulk Construcion Materials

2014 ◽  
Vol 1020 ◽  
pp. 385-390
Author(s):  
S.A. Evtyukov ◽  
A.A. Schimanova ◽  
Jarosław Rajczyk ◽  
Marlena Rajczyk
Keyword(s):  
Incomplete Information ◽  
Experimental Research ◽  
Building Materials ◽  
Air Flow ◽  
Pneumatic Transport ◽  
Compressed Air ◽  
Optimal Parameters ◽  
Effective Operation ◽  
Sufficient Degree

Pneumatic transport is one of the most progressive means of mechanization and automation of loose goods transportation. It is used in aluminium, chemical, food, textile, construction and other industries. However, wide use of pneumatic transport is limited by the incomplete information on this subject. In this article provides a description of the design of useful models of the suction intake device пневмотранспортной installation. A useful model was developed with the participation of the author of the staff of the Department of transport and technological machines architectural-building University. The author has developed stages of the suction intake unit and carried out theoretical and experimental research on each step to achieve the most effective operation of the device. In view of the fact that for the main parameters of the suction intake devices of the theory of destroying the fabric of a flooded the air flow is not developed to a sufficient degree, the author has studied the process of propagation and interaction of flooded jet with the surface. The article systematized and presents the results of experimental research on the interaction of flooded jets of air sealing with building materials of different kinds. The author determined the optimal parameters of the process of packed loosening material jets of compressed air at the fence material suction fence device.

scholarly journals Behavior of Natural Organic Polymer-Based Plaster Mortars under the Influence of Water

Proceedings ◽  
2021 ◽  
Vol 63 (1) ◽  
pp. 78
Author(s):  
Alexandra Olga Pintea ◽  
Marta Ioana Moldoveanu ◽  
Daniela Lucia Manea
Keyword(s):  
Absorption Coefficient ◽  
Experimental Research ◽  
Building Materials ◽  
Organic Polymer ◽  
Natural Polymer ◽  
Water Absorption Coefficient ◽  
Long Period ◽  
Influence Of Water ◽  
Ancient Times ◽  
Softening Coefficient

The influence of polymers upon building materials has been present since ancient times, but it was neglected for a long period. The present research discusses the effect of natural organic polymers (casein, rice, egg) in the formula of classical plastering according to the experimental research aiming at finding out the water absorption coefficient and the softening coefficient. The main objective of this work lies in identifying the most performance-related natural polymer which can determine the most efficient impermeability that can lead to the best values for the plaster mortar formula.

scholarly journals Plasma Technology for Producing Coverings on Building Materials

2019 ◽  
Vol 97 ◽  
pp. 06005 ◽  
Author(s):  
Alexey Lykov ◽  
Nataliya Mokrova
Keyword(s):  
Surface Layer ◽  
Experimental Research ◽  
Building Materials ◽  
Construction Materials ◽  
Plasma Processing ◽  
Plasma Generator ◽  
Plasma Technology ◽  
Technological Parameters ◽  
Production Characteristics

Results of plasma processing of construction materials are presented in the article. The article also covers the plasma generator construction and technology of receiving protectively decorative covering on concrete that were developed by the authors. This plasma generator construction and technology provide coverings on concrete with strength and production characteristics that are superior to the existing alternatives. Results of the calculation and experimental research of the surface layer are presented. The technological parameters that influence the characteristics of the covering are given.

scholarly journals Improving the Efficiency of Non-Stationary Climate Control in Buildings with a Non-Constant Stay of People by Using Porous Materials

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2307
Author(s):  
Alexander Shkarovskiy ◽  
Shirali Mamedov
Keyword(s):  
Structural Material ◽  
Energy Conservation ◽  
Porous Materials ◽  
Air Temperature ◽  
Experimental Research ◽  
Building Materials ◽  
Climate Control ◽  
Significant Drop ◽  
Foam Polystyrene ◽  
The Stability

This article presents the results of experimental research on the non-stationary management of the internal climate of buildings with a non-constant stay of people. During the absence of people, a significant drop in air temperature and corresponding energy conservation in heating is possible. The effectiveness of porous building materials is shown, provided that the appropriate characteristics are selected. Daily fluctuations in the outside temperature are completely extinguished by a layer of foam polystyrene insulation. The absence of channel porosity in the structural material of the wall is a guarantee of the stability of its thermal and humidity regime. This, in turn, prevents the development of mold and mildew.

scholarly journals Investigation of Waste Paper Cellulosic Fibers Utilization into Cement Based Building Materials

Buildings ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 43 ◽  
Author(s):  
Viola Hospodarova ◽  
Nadezda Stevulova ◽  
Jaroslav Briancin ◽  
Katarina Kostelanska
Keyword(s):  
Building Materials ◽  
Waste Paper ◽  
Cellulosic Fibers

Experimental Research on Making Aerated Concrete by Petroleum Coke Desulfuration Residue

2011 ◽  
Vol 675-677 ◽  
pp. 799-802
Author(s):  
Qiu Yi Li ◽  
Ping Zhang ◽  
Song Gao ◽  
Hui Du
Keyword(s):  
Experimental Research ◽  
Petroleum Coke ◽  
Building Materials ◽  
Experimental Results ◽  
Environmental Benefits ◽  
Autoclaved Aerated Concrete ◽  
Aerated Concrete

Petroleum coke desulfuration residue, from combustion desulfuration of high sulfur petroleum coke, presents drying powdery and a favorable cementing performance. Lime and gypsum are replaced by petroleum coke desulfuration residue to produce aerated concrete in this research. The experimental results indicate that products made of high-sulfur petroleum coke desulfuration residue satisfy the requirements in national code of autoclaved aerated concrete [1] (GB11968-2006) and has better performance than traditional lime aerated concrete products. Consequently, the application of high-sulfur petroleum coke desulfuration residue in aerated concrete broadens the resourcelized utilization of petroleum coke desulfuration residue, and solves the scarcity of building materials resources. It ought to have expansive application prospect because of remarkable economic, social, and environmental benefits.

Properties of Magnesium Oxychloride and Magnesium Oxysulphate Cement Composites

2021 ◽  
Vol 903 ◽  
pp. 208-213
Author(s):  
Elvija Namsone ◽  
Genadijs Sahmenko ◽  
Aleksandrs Korjakins
Keyword(s):  
Mechanical Properties ◽  
Energy Consumption ◽  
Portland Cement ◽  
Calcination Temperature ◽  
Experimental Research ◽  
Magnesium Sulphate ◽  
Magnesium Chloride ◽  
Building Materials ◽  
Cement Composites ◽  
Magnesium Oxychloride

Increasing energy consumption is forcing the building sector to seek and use building materials and products that would be environmentally friendly. As one such material should be noted magnesium based cements, which production requires much lower calcination temperature than the traditional Portland cement. During the experimental research part of this work, two types of magnesia cement were produced (using magnesium chloride and magnesium sulphate brine solutions) and physical, mechanical properties of obtained cement composites were determined.

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