2 research outputs found
Development of Lightweight Concrete Interlocking Block Panel with Water Treatment Sludge and Expanded Metal Ferrocement
An innovative lightweight concrete interlocking block panel was developed to improve the lateral resistance of the infilled frame with green construction material. The water treatment sludge obtained from Bang Khen water treatment plants was employed to replace the fine aggregate.  The lightweight concrete interlocking block panel was strengthened with ferrocement technique and expanded metal sheet.  Three sets of the strengthened block panels with various sizes of expanded mental were investigated: concrete block panel, interlocking block panel with thin bed adhesive mortar, interlocking block panel with thick bed cement mortar.  The concrete with mixed proportion of cement, sand, water, foaming agent, and sludge of 1:0.70:0.60:0.006:0.30 by weight was suitable for producing the lightweight concrete block according to the Thai Industrial Standard. The compressive strength test of masonry prisms and the diagonal tension (shear) test were conducted for the three sets of the strengthened block panels. The test results reveal that the interlocking block was superior to the conventional concrete block in terms of strength and ductility capacity due to the effect of interlocking between the block.  The shear key with thick bed cement mortar is more effective than the thin bed adhesive mortar typically used in the construction of lightweight concrete
āļāļēāļĢāļĢāļ°āļāļēāļĒāđāļĨāļ°āļāļēāļĢāđāļāļĢāđāļāļĢāļ°āļāļēāļĒāļāļāļāđāļĨāļŦāļ°āđāļāļāļļāđāļāļāļēāļāļāļļāļāļŠāļēāļŦāļāļĢāļĢāļĄāđāļāļĢāļ·āđāļāļāļāļąāđāļāļāļīāļāđāļāļēEmission and Dispersion of Metals in Particulate Matter from Pottery Industry
āļāļāļāļąāļāļĒāđāļÂ āļāļĢāļ°āđāļāđāļāļŠāļīāđāļāđāļ§āļāļĨāđāļāļĄāđāļāļāļļāļāļŠāļēāļŦāļāļĢāļĢāļĄāđāļāļĢāļ·āđāļāļāļāļąāđāļāļāļīāļāđāļāļēāđāļāļĢāļ°āļāļąāļāļāđāļāļāļāļīāđāļāļāļĩāđāļŠāļģāļāļąāļ āļāļ·āļ āļāļąāđāļāļāļāļāļāļēāļĢāđāļāļēāļāļĩāđāļāļēāļāļĢāļ°āļāļāļāļ§āļāļāļļāļĄāļĄāļĨāļāļīāļĐ āļāļķāđāļāļāļēāļāļŠāđāļāļāļĨāļāļĢāļ°āļāļāļāđāļāļŠāļļāļāļ āļēāļāđāļĨāļ°āļŠāļīāđāļāđāļ§āļāļĨāđāļāļĄ āļāļēāļĢāļĻāļķāļāļĐāļēāļāļĩāđāđāļāđāļ§āļīāđāļāļĢāļēāļ°āļŦāđāļāļ§āļēāļĄāđāļāđāļĄāļāđāļāļāļāļāļāļļāđāļāđāļĨāļ°āđāļĨāļŦāļ°āđāļāļāļļāđāļāļāļĩāđāļĢāļ°āļāļēāļĒāļāļāļāļāļēāļāļāļąāđāļāļāļāļāļāļēāļĢāđāļāļēāļāļĩāđāđāļāđāđāļĄāđāđāļāđāļāđāļāļ·āđāļāđāļāļĨāļīāļāđāļĨāļ°āļāļēāļĢāđāļāļĢāđāļāļĢāļ°āļāļēāļĒāļāļāļāļŠāļēāļĢāļĄāļĨāļāļīāļĐāđāļāļāļĢāļĢāļĒāļēāļāļēāļĻāļāđāļ§āļĒāđāļāļāļāļģāļĨāļāļ AERMOD āđāļāļĒāđāļĨāļ·āļāļāđāļĢāļāļāļēāļāđāļāļĢāļ·āđāļāļāļāļąāđāļāļāļīāļāđāļāļēāđāļŦāđāļāļŦāļāļķāđāļāđāļāļāļģāđāļ āļāđāļĄāļ·āļāļ āļāļąāļāļŦāļ§āļąāļāļĢāļēāļāļāļļāļĢāļĩ āđāļāđāļāļāļĢāļāļĩāļĻāļķāļāļĐāļē āļāļąāļ§āļāļĒāđāļēāļāļāļļāđāļāļāļđāļāđāļāđāļāļāļĩāđāļāļĨāđāļāļāļĢāļ°āļāļēāļĒāļāļāļāđāļāļēāđāļāļēāļāļĨāļāļāļāļąāđāļāļāļāļāļāļēāļĢāđāļāļē āļāļģāļāļ§āļ 2 āļĢāļāļāļāļēāļĢāļāļĨāļīāļ āđāļĨāļ°āļ§āļīāđāļāļĢāļēāļ°āļŦāđāļāļĢāļīāļĄāļēāļāļāļļāđāļāļāđāļ§āļĒāļ§āļīāļāļĩāļāļĢāļēāļ§āļīāđāļĄāļāļĢāļīāļ āļāļēāļāļāļąāđāļāļ§āļīāđāļāļĢāļēāļ°āļŦāđāļāļĢāļīāļĄāļēāļāđāļĨāļŦāļ°āđāļāļāļļāđāļāļāļąāđāļāļŦāļĄāļ 15 āļāļāļīāļ āļāđāļ§āļĒāđāļāļĢāļ·āđāļāļ ICP-OES āļāļĨāļāļāļ§āđāļē āļĄāļĩāļāļ§āļēāļĄāđāļāđāļĄāļāđāļāļāļāļāļāļļāđāļāđāļāļĨāļĩāđāļĒ āđāļāđāļēāļāļąāļ 131 āļĄāļīāļĨāļĨāļīāļāļĢāļąāļĄāļāđāļāļĨāļđāļāļāļēāļĻāļāđāđāļĄāļāļĢ āđāļĨāļ°āļāļāđāļĨāļŦāļ° 8 āļāļāļīāļ āđāļāđāđāļāđ Fe Al Zn Mg Ni Cr Mn āđāļĨāļ° Cu āļŠāđāļ§āļāļāļĨāļāļēāļĢāļāļēāļāļāļēāļĢāļāđāļāđāļ§āļĒāđāļāļāļāļģāļĨāļāļ āļāļāļ§āđāļē āļāļļāđāļāļĄāļĩāļāļēāļĢāđāļāļĢāđāļāļĢāļ°āļāļēāļĒāļŠāļāļāļāļĨāđāļāļāļāļąāļāļāļąāļāļĨāļĄāļāļāļāļāļ·āđāļāļāļĩāđ āđāļāļĒāļāļāļāļ§āļēāļĄāđāļāđāļĄāļāđāļāļāļāļāļāļļāđāļāļŠāļđāļāļŠāļļāļ 24 āļāļąāđāļ§āđāļĄāļ (āđāļāļĨāļĩāđāļĒāļŠāļāļāļĢāļāļāļāļēāļĢāļāļĨāļīāļ) āđāļĄāđāđāļāļīāļāļāđāļēāļĄāļēāļāļĢāļāļēāļāļāļļāđāļāļĨāļ°āļāļāļāļāļāļēāļāđāļĨāđāļ (PM10) āđāļāļāļĢāļĢāļĒāļēāļāļēāļĻ āļŠāđāļ§āļāđāļĨāļŦāļ°āļāļĩāđāđāļāđāļāļāļąāļāļāļĢāļēāļĒ (Cr Mn āđāļĨāļ° Ni) āđāļĄāđāđāļāļīāļāđāļāļāļāđāļāļĩāđāļŠāđāļāļāļĨāļāđāļāļŠāļļāļāļ āļēāļAbstractOne of the critical environmental issue of a local pottery production industry is an air pollution emission from burning process without control systems. This may seriously cause health and environmental impacts. This study analyzed particulate matter (PM) concentration and its metal composition released from the wood-fueled burning process of the pottery production. Prediction of the pollutants dispersion was also performed using AERMOD model. A pottery factory in Muang district, Ratchaburi province was selected as a case study. PM sampling was performed at stackâs furnace throughout the burning process in two production cycles. PM were quantified by means of gravimetric method. A number of 15 metal elements in PM were then analyzed by using the ICP-OES instrument. The results found that averaged PM emission was 131 mg/m3. There were totally 8 metal species found as follow: Fe, Al, Zn, Mg, Ni, Cr, Mn and Cu. The modelâs dispersion estimations showed PM alignments agreed with wind roses of the study area. The 24-hours-highest PM concentration (averaged both of the two production cycles) and the hazardous metals â Cr, Mn and Ni â were found below the national ambient PM10 standard and health related guidelines, respectively