scholarly journals Innovating traditional building materials in Chembe, Malawi: assessing post-consumer waste glass and burnt clay bricks for performance and circularity

2021 ◽  
pp. 1-10
Author(s):  
Noredine Mahdjoub ◽  
Marc Kalina ◽  
Alex Augustine ◽  
Elizabeth Tilley
Keyword(s):  
Building Materials ◽  
Waste Glass ◽  
Clay Bricks ◽  
Burnt Clay

Water Vapour Sorption and Hysteresis Models Applicable for Silicate Building Materials

2015 ◽  
Vol 1126 ◽  
pp. 111-116
Author(s):  
Peter Mihalka ◽  
Peter Matiasovsky
Keyword(s):  
Water Vapour ◽  
Building Materials ◽  
Sorption Isotherms ◽  
Domain Model ◽  
Water Vapour Sorption ◽  
Clay Bricks ◽  
Vapour Sorption ◽  
Burnt Clay ◽  
Calcium Silicates ◽  
Independent Domain

Various models of the water vapour sorption isotherms were analysed from the aspect of their applicability for silicate-based building materials like calcium-silicates, burnt clay bricks, plasters and mortars. The analysis included the assessment of the various sorption hysteresis models. They were compared and calibrated with experimental data, consisting of the main adsorption and the scanning curves. For the silicate-based building materials as a fundamental the Brunauer–Emmett–Teller (BET) and Frenkel–Halsey–Hill (FHH) models of adsorption in a combination together with Kelvin-Cohan (KC) model of desorption, with the Independent Domain Model of hysteresis can be applied due to their satisfactory universality.

scholarly journals Natural radioactivity and radiological hazard of red-clay brick produced in Shangluo, China

2020 ◽  
Vol 35 (4) ◽  
pp. 347-353
Author(s):  
Sukai Zhuang ◽  
Xinwei Lu
Keyword(s):  
Building Materials ◽  
Natural Radionuclides ◽  
Hazard Index ◽  
Radiation Hazard ◽  
Radiological Hazard ◽  
Clay Brick ◽  
Red Clay ◽  
Clay Bricks ◽  
Activity Concentrations ◽  
Red Clay Brick

The radiological hazard of building materials originating from clay, rock and other mineral wastes has attracted more attention because they contain natural radionuclides (226Ra, 232Th, and 40K). The activity concentration of radionuclides in red-clay brick samples obtained from three different brickyards in Shangluo, China waHs measured. Various indexes, including radium equivalent activities, Raeq, external hazard index, Hex, internal hazard index, Hin, indoor air absorbed dose rate, D, and annual effective dose, AED, of the aforementioned radionuclides in the bricks were used to assess the radiation hazard for people. The average activity concentrations of 226Ra, 232Th, and 40K were respectively 34.5 ? 1.9, 62.5 ? 2.1, and 713.7 ? 19.8 Bqkg?1 for the studied red-clay bricks. The Raeq values of the red-clay brick samples varied from 167.0 to 184.7 Bqkg?1, which are lower than the limit of 370 Bqkg?1. Moreover, the activity concentrations of natural radionuclides in unfired brick, clay and coal were also determined and the results were compared with that in the red-clay brick samples. This study shows that the red-clay bricks produced in Shangluo, China can be used safely in construction industries.

Sustainability assessment of brick work for low-cost housing: A comparison between waste based bricks and burnt clay bricks

2018 ◽  
Vol 37 ◽  
pp. 396-406 ◽  
Author(s):  
Saurabh N. Joglekar ◽  
Rhushikesh A. Kharkar ◽  
Sachin A. Mandavgane ◽  
Bhaskar D. Kulkarni
Keyword(s):  
Sustainability Assessment ◽  
Low Cost ◽  
Clay Bricks ◽  
Burnt Clay ◽  
Low Cost Housing

Natural Radioactivity in Clay Ceramics and their Raw Materials in Latvia

2018 ◽  
Vol 788 ◽  
pp. 51-55
Author(s):  
Daina Riekstina ◽  
Tamara Krasta ◽  
Ruta Švinka
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Activity Index ◽  
Natural Radionuclides ◽  
Natural Radionuclide ◽  
Decay Chain ◽  
Activity Level ◽  
Clay Bricks ◽  
Baltic Countries ◽  
Clay Ceramics

Natural radionuclides K-40, and Th-232, U-238 (Ra-226) decay chain products contained in building materials are the main source of radiation dose received by population and the only source of indoor radiation exposure. Present work contains results of the study of natural radionuclide activity level in clay, clay ceramics and silica bricks used in Latvia. Obtained data show that radionuclide content in different clay products can differ up to five times. However, determined activity index values for all tested materials, except fireproof bricks, were below radionuclide concentration level permitted by EU and Latvian national regulations. Comparison with analogous data from other North European and Baltic countries shows that average concentrations of natural radionuclides and activity index values for clay and clay bricks used in Latvia are on the same level as in other countries, except Sweden.

scholarly journals Evaluation of New Applications of Oil Shale Ashes in Building Materials

Minerals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 765
Author(s):  
Mustafa Cem Usta ◽  
Can Rüstü Yörük ◽  
Tiina Hain ◽  
Peeter Paaver ◽  
Ruben Snellings ◽  
...  
Keyword(s):  
Oil Shale ◽  
Building Materials ◽  
Mineralogical Composition ◽  
Accelerated Carbonation ◽  
Zero Waste ◽  
Clay Bricks ◽  
Carbon Neutral ◽  
New Applications ◽  
Future Utilization

Achieving sustainable zero-waste and carbon neutral solutions that contribute to a circular economy is critically important for the long-term prosperity and continuity of traditional carbon-based energy industries. The Estonian oil shale (OS) sector is an example where such solutions are more than welcome. The combustion of OS generates a continuous flow of ashes destined to landfills. In this study, the technical feasibility of producing monolith building materials incorporating different OS ashes from Estonia was evaluated. Three binder systems were studied: self-cementation of the ashes, ceramic sintering in clay brick production and accelerated carbonation of OS ash (OSA) compacts. Results showed that most of the OSAs studied have low self-cementitious properties and these properties were affected by ash fineness and mineralogical composition. In case of clay bricks, OSA addition resulted in a higher porosity and improved insulation properties. The carbonated OSA compacts showed promising compressive strength. Accelerated carbonation of compacted samples was found to be the most promising way for the future utilization of OSAs as sustainable zero-waste and carbon neutral solution.

Ziegel und Terrakotta - Wissenszuwachs aus der BMBF-Forschung für die Denkmalpflege / Burnt clay bricks and terracotta - gain of knowledge by BMBF supported research for the protection of monuments

1999 ◽  
Vol 5 (6) ◽  
pp. 599-608
Author(s):  
H. Ruebesam
Keyword(s):  
Research Programme ◽  
Brick Masonry ◽  
Clay Bricks ◽  
Research Institutes ◽  
Burnt Clay ◽  
Different Types ◽  
Close Cooperation

Abstract First of all it is pointed out that ten years ago little was known on deterioration and repair of exposed brick masonry or terracotta. A comprehensive research programme has been initiated and financially supported by the German Federal Ministry for Research and Technology (BMFT). One aim of this research programme was to identify deterioration mechanisms in close cooperation between representatives from services for the protection of monuments and from research institutes. In addition repair methods meeting both practical needs and requirements of the protection of monuments were to be developed. Different types of damage have been characterized at numerous buildings. As a result repair methods specific for each building have been established. In this contribution most important results of the huge research programme are briefly mentioned.

Properties of Fired Clay Bricks Mixed with Waste Glass

2017 ◽  
Vol 13 (4) ◽  
pp. 1-9
Author(s):  
Hisham Abdeen ◽  
Samir Shihada
Keyword(s):  
Waste Glass ◽  
Clay Bricks

REUSE OF GLASS AND CLAY BRICK WASTES AS SUBSTITUTE FOR NATURAL AGGREGATE IN GREEN CONCRETE

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Oluwarotimi Olofinnade ◽  
Anthony Ede ◽  
Julius Ndambuki ◽  
Ayanfe Opeyemi
Keyword(s):  
Waste Glass ◽  
Clay Brick ◽  
Green Concrete ◽  
Clay Bricks ◽  
Brick Powder ◽  
Glass Aggregate ◽  
Natural Aggregates ◽  
Glass Wastes ◽  
Powder Content ◽  
Curing Age

Utilization of recycled waste materials in making concrete is identified as a sustainable means of managing wastes, thereby reducing the energy consumption, preserving the environment and conserving of natural resources from depletion. Researchers referred to this type of concrete as "green" concrete. This study examines the possible reusing of crushed waste glass as partial and complete substitute for natural aggregates in production of moderate strength green concrete with the addition of ground clay brick as admixture. The clay bricks were obtained as generated wastes from the ceramic and brick producing factory, while the glass wastes were sourced from dump sites and waste collection points within Ota, Nigeria. The waste glass varied from 25%-100% in steps of 25%, and the ground clay brick was added in 10%, 15% and 20% by mass of Portland cement into the concrete mixes. Tests, which include workability and characteristics strength were carried out on the concrete specimens. Microstructural examination was performed on selected concrete specimens. Results indicate reduction in workability with increased waste glass and clay brick powder content. Moreover, the characteristic compressive strength of the concrete specimens increased with curing age, however, concrete mixes containing 10% clay brick powder and 25% waste glass aggregate showed significant improvement in strength at curing age of 28 days than the control concrete.

Utilization of Waste Glass in Polymer Concrete

2016 ◽  
Vol 865 ◽  
pp. 171-177 ◽  
Author(s):  
Jakub Hodul ◽  
Jana Hodná ◽  
Rostislav Drochytka ◽  
Michaela Vyhnánková
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Physical And Mechanical Properties ◽  
Developed Countries ◽  
Waste Glass ◽  
Waste Material ◽  
Polymer Concrete ◽  
Building Industry ◽  
Glass Waste ◽  
Suitable Treatment

Glass waste is currently produced almost in all developed countries. It is the silicate based waste material which after suitable treatment has found application in many industries and therefore some types of waste glass belong to progressive secondary raw materials. However, the use of this silicate waste material which differ on the basis of an initial use of the glass in its physical and mechanical properties has not been fully explored in the field of building industry – the production of building materials. The replacement of the common filler – quartz sand in the polymer concrete (PC) could be one of the effective possibilities of the utilization of different type of waste glass in the building industry. Mainly for this reason, this work deals with the experimental examining the possibility of using various types of waste glass in the polymer concrete based on epoxy resin.

Possibilities of Binding Recycled Glass in Production of Advanced Building Materials

2016 ◽  
Vol 865 ◽  
pp. 255-260
Author(s):  
Martina Reif ◽  
Jiri Zach ◽  
Vítězslav Novák
Keyword(s):  
Thermal Insulation ◽  
Building Materials ◽  
Lightweight Concrete ◽  
Raw Materials ◽  
Lightweight Aggregate ◽  
Waste Glass ◽  
Raw Material ◽  
Acoustic Properties ◽  
Transportation Engineering ◽  
Advanced Composite Materials

The use of secondary raw material resources for construction purposes currently has a great potential. Secondary raw materials obtained by recycling waste glass find use (among others) in the production of thermal and acoustic insulation, production of lightweight concrete mixes and also in transportation engineering e.g. in road reconstruction.The paper deals with the possibilities of binding lightweight aggregate based on waste glass powder and with the production of advanced composite materials with good thermal insulation and acoustic properties. This means cement, epoxy resin and bituminous matrix with the goal to develop advanced building materials that could find further use as, for example, thermal insulation materials.

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