Evaluation of VOC emission and sorption characteristics of low-VOC adhesive-bonded building materials

2013 ◽  
Vol 27 (5-6) ◽  
pp. 683-698 ◽  
Author(s):  
Dong Hwa Kang ◽  
Dong Hee Choi ◽  
Myoung Souk Yeo ◽  
Kwang Woo Kim
Keyword(s):  
Building Materials ◽  
Voc Emission ◽  
Sorption Characteristics

Activation of Diatomaceous Earth Low-Temperature Plasma

2020 ◽  
Vol 992 ◽  
pp. 277-282
Author(s):  
Michail Bruyako ◽  
L. Grigoryeva
Keyword(s):  
Low Temperature ◽  
Building Materials ◽  
Polymeric Materials ◽  
Chemical Compounds ◽  
Nonequilibrium Plasma ◽  
Toxic Chemical ◽  
Temperature Plasma ◽  
Industrial Buildings ◽  
High Sorption ◽  
Sorption Characteristics

In residential and industrial buildings, a special air environment is formed, which contains gas shaped toxic chemical compounds. A significant part of such substances comes from finishing polymer containing materials. Virtually all polymeric materials release certain toxic chemical compounds into the air. The methods and methods of air cleaning are different. One of the ways to solve the problem associated with providing the required standards for the quality of indoor air is the development and use of new efficient building materials using aggregates that have a high sorption capacity. The paper presents the results of a study of the effect of low temperature non-equilibrium plasma on the sorption characteristics of aggregates based on diatomite earth. Studies have been conducted on samples of natural diatomite and quartz sand. When activated by low temperature nonequilibrium plasma, the structure changes, which leads to an increase in the sorption characteristics of the samples under study.

scholarly journals VOC Emission from Building Materials in Residential Buildings with Radiant Floor Heating Systems

2012 ◽  
Vol 12 (6) ◽  
pp. 1398-1408 ◽  
Author(s):  
Sun Sook Kim ◽  
Dong Hwa Kang ◽  
Dong Hee Choi ◽  
Myoung Souk Yeo ◽  
Kwang Woo Kim
Keyword(s):  
Building Materials ◽  
Residential Buildings ◽  
Voc Emission ◽  
Heating Systems ◽  
Radiant Floor Heating ◽  
Floor Heating

scholarly journals Modified sorbents based on diatomites

Vestnik MGSU ◽  
2019 ◽  
pp. 862-869
Author(s):  
Nguyen Viet Cong ◽  
Polina S. Korotkova ◽  
Elnara N. Khanmamedova ◽  
Larisa S. Grigoryeva
Keyword(s):  
Low Temperature ◽  
Building Materials ◽  
Gravimetric Method ◽  
Nonequilibrium Plasma ◽  
Toxic Substances ◽  
Active Centers ◽  
Temperature Plasma ◽  
Modified Sorbents ◽  
Sorption Characteristics

Introduction: the quality of the air environment in the premises depends mainly on the presence of toxic chemical substances in it. An urgent task is the development and application of new efficient building materials using aggregates with high sorption capacity. The paper presents the results of a study of the influence of a low-temperature nonequilibrium plasma on the sorption characteristics of diatomite-based aggregates. Materials and methods: the diatomites of the Irbit deposit, quartz sand were chosen as the materials under study. The study of the effect of low-temperature plasma on the change in the characteristics of modified diatomites was performed using the Raman spectrometer Senterra. The change in the sorption characteristics of diatomites was determined by the gravimetric method. Results: plasma-modified prototypes of a diatomite-based sorbent, with higher sorption characteristics than the initial ones, were obtained. Analysis of the results obtained by the method of Raman scattering confirmed the structural change on the surface of plasma-modified samples with the formation of additional active centers and radicals. Conclusions: modified sorbents are able to provide more efficient absorption of toxic substances in comparison with the control samples. After additional technological research, they can be recommended for introduction into the production of building materials with additional properties to ensure the regulatory requirements for the quality of the air environment in the premises.

HYSTERESIS AND TEMPERATURE DEPENDENCY OF WATER VAPOR SORPTION

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Ruta Miniotaite
Keyword(s):  
Building Materials ◽  
Moisture Sorption ◽  
Water Vapor Sorption ◽  
Temperature Dependency ◽  
Adsorption And Desorption ◽  
Porous Building Materials ◽  
Heat And Moisture Transport ◽  
Almost All ◽  
Heat And Moisture ◽  
Sorption Characteristics

Moisture in porous building materials plays an important role in almost all durability problems. The sorption characteristics of building materials exhibit hysteresis in the way the equilibrium curves develop between adsorption and desorption. The sorption curves are also somewhat temperature-dependent. These facts are most often neglected in models for combined heat and moisture transport in materials. This study provides the sorption isotherm and its hysteresis of different porous building materials. The paper seeks to contribute to the knowledge base about such sorption characteristic by presenting some new measurements of hysteresis and temperature dependency of the moisture sorption characteristics of different porous building materials: concrete, porous concrete, cement plaster, limes cement plaster, brick, and spruce. Scanning curves are measured for all materials where periods with adsorption and desorption interrupt each other intermittently between 0% and 97% of relative humidity.

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