scholarly journals Chemical Emission Rates from Building Materials Measured by a Small Chamber

2002 ◽  
Vol 1 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Rika Funaki ◽  
Shin-ichi Tanabe
Keyword(s):  
Building Materials ◽  
Emission Rates ◽  
Small Chamber

The Measurement of SVOC Emission Rates from Building Materials

2017 ◽  
Vol 893 ◽  
pp. 369-374
Author(s):  
Hyun Tae Kim ◽  
Tae Woo Kim ◽  
Won Hwa Hong ◽  
Kang Guk Lee ◽  
Kim Kang Min
Keyword(s):  
House Dust ◽  
Building Materials ◽  
Emission Rate ◽  
Emission Rates ◽  
Residential Homes ◽  
Chemical Substances ◽  
Other Substances ◽  
Materials Used ◽  
High Level ◽  
Qualitative Analyses

Recent studies have reported that indoor house dust contains a large volume of SVOC chemical substances such as phthalates. This study measured the SVOC emission rate from various types of building materials and conducted quantitative and qualitative analyses on the emitted substances. DBP and DEHP were detected in all building materials based on the result obtained from measuring the building materials produced in Japan, South Korea, and China. The DBP and DEHP emission rates (95 percentile) from the building materials used for the measurement in this study were 2.56 [μg/m2・h] and 11.63[μg/m2・h] respectively. Larger DBP and DEHP emission rate from building materials are believed to be the reason why a high level of DBP and DEHP is detected in house dust found in residential homes compared to other substances.

Comparison of three small chamber test methods for the measurement of VOC emission rates from paint

Indoor Air ◽  
2003 ◽  
Vol 13 (2) ◽  
pp. 156-165 ◽  
Author(s):  
A. Afshari ◽  
B. Lundgren ◽  
L. E. Ekberg
Keyword(s):  
Test Methods ◽  
Emission Rates ◽  
Voc Emission ◽  
Small Chamber

Determination of radon emanation and back diffusion characteristics of building materials in small chamber tests

1997 ◽  
Vol 32 (4) ◽  
pp. 355-362 ◽  
Author(s):  
Christopher Y.H. Chao ◽  
Thomas C.W. Tung ◽  
Daniel W.T. Chan ◽  
John Burnett
Keyword(s):  
Building Materials ◽  
Radon Emanation ◽  
Back Diffusion ◽  
Small Chamber ◽  
Diffusion Characteristics

scholarly journals Rice Husk Ash-Based Concrete Composites: A Critical Review of Their Properties and Applications

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 168
Author(s):  
Mugahed Amran ◽  
Roman Fediuk ◽  
Gunasekaran Murali ◽  
Nikolai Vatin ◽  
Maria Karelina ◽  
...  
Keyword(s):  
Rice Husk ◽  
Building Materials ◽  
Rice Husk Ash ◽  
Cost Effective ◽  
Silica Content ◽  
Emission Rates ◽  
Cement Production ◽  
Clean Environment ◽  
High Silica ◽  
Mineral Fillers

In the last few decades, the demand for cement production increased and caused a massive ecological issue by emitting 8% of the global CO2, as the making of 1 ton of ordinary Portland cement (OPC) emits almost a single ton of CO2. Significant air pollution and damage to human health are associated with the construction and cement industries. Consequently, environmentalists and governments have ordered to strongly control emission rates by using other ecofriendly supplemental cementing materials. Rice husk is a cultivated by-product material, obtained from the rice plant in enormous quantities. With no beneficial use, it is an organic waste material that causes dumping issues. Rice husk has a high silica content that makes it appropriate for use in OPC; burning it generates a high pozzolanic reactive rice husk ash (RHA) for renewable cement-based recyclable material. Using cost-effective and commonly obtainable RHA as mineral fillers in concrete brings plentiful advantages to the technical characteristics of concrete and to ensure a clean environment. With RHA, concrete composites that are robust, highly resistant to aggressive environments, sustainable and economically feasible can be produced. However, the production of sustainable and greener concrete composites also has become a key concern in the construction industries internationally. This article reviews the source, clean production, pozzolanic activity and chemical composition of RHA. This literature review also provides critical reviews on the properties, hardening conditions and behaviors of RHA-based concrete composites, in addition to summarizing the research recent findings, to ultimately produce complete insights into the possible applications of RHA as raw building materials for producing greener concrete composites—all towards industrializing ecofriendly buildings.

Current Status and Problems of Building Interior Decoration Using Low Formaldehyde-Emitting Materials in Taiwan

2015 ◽  
Vol 775 ◽  
pp. 279-282
Author(s):  
Lin Lin Huang ◽  
Han Cheng Juan
Keyword(s):  
Building Materials ◽  
Formaldehyde Emission ◽  
Model Management ◽  
Current Status ◽  
Formaldehyde Concentration ◽  
Emission Rates ◽  
Waiting Room ◽  
Supply Source ◽  
Path Control ◽  
Inspection Systems

Regardless of material regulations at the supply source or post-construction quality inspection systems, certain levels of model management systems have been developed. However, in the hospital waiting room, the measured formaldehyde concentration in the air reached 0.99 ppm, which is 12 times higher than that of the standard value. The formaldehyde emission rates measured in the building materials of the private housings or hospital waiting room ranged from 158 to 238 μg/m2∙h, which exceed both the ABSL and BSMI standards. Moreover, the decoration locations, construction staff, and construction behaviors varied despite their claims of using low formaldehyde-emitting materials. This study compiled the current objectives and regulations established by various supervising authorities and implemented a supporting management system in material grading, amount of material usage, ventilation path control, and ventilation effectiveness for facilitating the promotion of healthy indoor air quality, thereby enhancing public health.

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