Experimental investigation of mortars using activated Hwangtoh

Go, Seong-Seok; Lee, Jae Yong; Kim, Jihyun; Chung, Chul-Woo

doi:10.1016/j.conbuildmat.2008.07.007

Cited by 27 publications

(19 citation statements)

References 3 publications

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“…The analysis results of HCHO, total volatile organic compound (TVOC), and 5VOCs were 0.005, 0.058, and 0.002 mg/m^h. Hwang and Kang [13], Yang et al [14], and Go et al [15] proposed red clay as the main component of concrete, but its emission characteristics were not analyzed. Currently, there are insufficient studies that analyzed characteristics of pollutant emission from the red clay adhesive.…”

Section: Introductionmentioning

confidence: 99%

Study on the characteristics of pollutant emission from floor adhesive formulated using red clay

Chung

Park

2013

Journal of Adhesion Science and Technology

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Development of building materials has been actively underway using natural materials in order to improve indoor air quality. Among such natural materials, red clay has been frequently used for development of building materials. In this study, 138 different environment-friendly adhesives were analyzed, aiming at determining the performance of adhesives prepared using red clay. The emission factors of formaldehyde and total volatile organic compounds (TVOCs) were examined for adhesives that had acquired the environment-friendly building materials eertifieation before comparing with the characteristics of emission from red clay containing adhesives. In order to analyze pollutant reduction performance of the red clay adhesive, we exposed the clays to pollutants of formaldehyde and volatile organic compounds (VOCs), and analyzed the emission reduction performance due to adsorption on the red clay. The analysis results demonstrated the emission reduction performance of formaldehyde. Lastly, we compared the pollutant emission factors from multilayer building materials using red clay adhesive and general materials. The comparison results showed low emission factors for formaldehyde and VOCs. These results ean be used as the basic data on performance characteristics of red clay adhesive.

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Section: Introductionmentioning

confidence: 99%

Study on the characteristics of pollutant emission from floor adhesive formulated using red clay

Chung

Park

2013

Journal of Adhesion Science and Technology

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“…Sick house syndrome is a serious problem with the air quality caused by indoor contaminants in the home and work place [13]. Many building materials emit volatile organic compounds (VOCs) which have the potential to affect human health and comfort.…”

Section: Introductionmentioning

confidence: 99%

Environment-friendly Hwangtoh Composite Materials Using Water Soluble Resin for Indoor Air Quality and Human Health

Kim

Park

2009

Journal of Composite Materials

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The objective of this research was to develop environment-friendly Hwangtoh binder for application of Hwangtoh for interior wall finishing materials in the housing. To mix with Hwangtoh powder, water soluble melamine-polyurethane copolymer (MPU) resin with ethylene-vinyl acetate copolymer (EVA), polyvinyl alcohol (PVA), CaCO 3 , and inorganic fillers were designed. Far infrared ray irradiation, total VOC (TVOC) emission behavior, surface bonding strength, and surface crack behavior were studied by comparing to epoxy/Hwangtoh blend as control. For TVOC emission behavior, the 20 L small chamber method was used and the results satisfied the requirements of the excellent grade of TVOC of Korea Air Clean Association. To utilize the advantage of Hwangtoh, such as high absorbency, self-purification, deodorizing, sanitizing properties, and radiation of far infrared rays in the field of modern housing, this study was the foundation to develop environment-friendly binders for Hwangtoh.

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“…The well-known advantages as a building material include high heat-storing capacity and its purifying, deodorizing, and antibiotic properties [25]. Moreover, when heating through Ondol (traditional floor heating system in Korea), the infrared radiation emission from the clay was confirmed to be beneficial to the human body [25]. With these advantages, it has been used as plastering, flooring, and finishing materials for buildings up to the present time [23,26].…”

Section: Introductionmentioning

confidence: 99%

“…Owing to its abundance and sustainable benefit, it has been studied by Korean researchers as a potential supplementary or main building material [23,24]. The well-known advantages as a building material include high heat-storing capacity and its purifying, deodorizing, and antibiotic properties [25]. Moreover, when heating through Ondol (traditional floor heating system in Korea), the infrared radiation emission from the clay was confirmed to be beneficial to the human body [25].…”

Section: Introductionmentioning

confidence: 99%

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Intensified Pozzolanic Reaction on Kaolinite Clay-Based Mortar

et al. 2017

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Abstract:The objective of this study is to develop and characterize kaolinite clay-based structural mortar. The pozzolanic reaction induced from two mineral additives, i.e., calcium hydroxide and silica fume (SF), and the physical filling effect from SF, were found to be effective on the enhancement of structural properties. Based on several preliminary experiments, 7:3 ratio of kaolinite clay/calcium hydroxide was selected as a basic binder. Then, the amount of SF was chosen as 0%, 7.5%, and 15% of the total binder to consider both the chemical and physical effects. The results showed that compressive strengths of samples with 7.5% and 15% SF are significantly increased by approximately 200% and 350%, respectively, at 28 days compared to the sample without SF. However, based on the results of the sample with 15% SF, it is found that excessive addition of SF causes long-term strength loss, possibly owing to micro cracks. With the careful consideration on this long-term behavior, this suggested new mix design can be further extended to develop sustainable structural materials using natural minerals or waste materials with nonbinding properties.

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Experimental investigation of mortars using activated Hwangtoh

Cited by 27 publications

References 3 publications

Study on the characteristics of pollutant emission from floor adhesive formulated using red clay

Study on the characteristics of pollutant emission from floor adhesive formulated using red clay

Environment-friendly Hwangtoh Composite Materials Using Water Soluble Resin for Indoor Air Quality and Human Health

Intensified Pozzolanic Reaction on Kaolinite Clay-Based Mortar

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