Rice husk panels for building applications: Thermal, acoustic and environmental characterization and comparison with other innovative recycled waste materials

2018 ◽  
Vol 171 ◽  
pp. 338-349 ◽  
Author(s):  
C. Buratti ◽  
E. Belloni ◽  
E. Lascaro ◽  
F. Merli ◽  
P. Ricciardi
Keyword(s):  
Rice Husk ◽  
Waste Materials ◽  
Environmental Characterization ◽  
Recycled Waste

scholarly journals Sustainable Panels Made with Industrial and Agricultural Waste: Thermal and Environmental Critical Analysis of the Experimental Results

2021 ◽  
Vol 11 (2) ◽  
pp. 494
Author(s):  
Paola Ricciardi ◽  
Elisa Belloni ◽  
Francesca Merli ◽  
Cinzia Buratti
Keyword(s):  
Thermal Conductivity ◽  
Life Cycle ◽  
Rice Husk ◽  
Agricultural Waste ◽  
Embodied Energy ◽  
Waste Materials ◽  
Impact Reduction ◽  
Combined Solution ◽  
Order Of Magnitude ◽  
Recycled Waste

Recycled waste materials obtained from industrial and agricultural processes are becoming promising thermal and acoustic insulating solutions in building applications; their use can play an important role in the environmental impact reduction. The aim of the present paper is the evaluation of the thermal performance of recycled waste panels consisting of cork scraps, rice husk, coffee chaff, and end-life granulated tires, glued in different weight ratios and pressed. Six panels obtained from the mixing of these waste materials were fabricated and analyzed. In particular, the scope is the selection of the best compromise solutions from the thermal and environmental points of view. To this aim, thermal resistances were measured in laboratory and a Life Cycle Assessment (LCA) analysis was carried out for each panel; a cross-comparative examination was performed in order to optimize their properties and find the best panels solutions to be assembled in the future. Life Cycle Analysis was carried out in terms of primary Embodied Energy and Greenhouse Gas Emissions, considering a ‘‘cradle-to-gate” approach. The obtained thermal conductivities varied in the 0.055 to 0.135 W/mK range, in the same order of magnitude of many traditional systems. The best thermal results were obtained for the panels made of granulated cork, rice husk, and coffee chaff in this order. The rubber granulate showed higher values of the thermal conductivity (about 0.15 W/mK); a very interesting combined solution was the panel composed of cork (60%), rice husk (20%), and coffee chaff (20%), with a thermal conductivity of 0.08 W/mK and a Global Warming Potential of only 2.6 kg CO2eq/m2. Considering the Embodied Energy (CED), the best solution is a panel composed of 56% of cork and 44% of coffee chaff (minimum CED and thermal conductivity).

Evaluation Indexes System for Assessing Road Construction with Recycled Waste Materials to Achieve Better Environmental Impacts

2011 ◽  
Vol 250-253 ◽  
pp. 1001-1006 ◽  
Author(s):  
De Zhen Chen ◽  
Cui Jie Geng ◽  
Wen Zhou Sun
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Waste Disposal ◽  
Large Scale ◽  
Construction Material ◽  
Bottom Ash ◽  
Road Construction ◽  
Waste Materials ◽  
Evaluation Indexes ◽  
Recycled Waste

Evaluation indexes system has been put forward in this paper for quantifying thesystematical energy consumption, resources consumption, total emissions’ change and waste disposal capacity in road construction with recycled waste materials involved. With help of this evaluation indexes system, the contributions to environmental improvement caused by recycling waste materials in road construction can be quantified through calculating savings on environmental impact potentials, savings on energy consumption, on virgin materials’ consumption and waste disposal capacity provided by road construction. Based on the construction project of a road section numbered No.20 EWK0+400 ~ EWK0+600 of North highway to Shanghai Pudong international airport, which was the first trial project of using several kinds of recycled waste materials including bottom ash from incinerators to replace commonly used materials such as gravel in large scale in road pavement, the results of the four indexes, namely, savings on energy consumption and virgin materials’ consumption, environmental impact potentials as well as waste disposal capacity were obtained. It was found out that with multi recycled waste materials replacing part of the common construction material, systematical energy consumption can be reduced by 30%, a large amount of virgin resource consumption can be avoid and road construction also provides a remarkable large “dumping site” for solid wastes; while at the same time environmental impact potentials were saved for most impact categories except for increase in Ecotoxicity, water chronic, which was caused by heavy metals’ leaching and can be prevented by pre-treatment. Those results are useful for guiding the utilization of recycled waste materials, as well as for developing new technology process and advanced materials in road construction.

scholarly journals Application of Recycled Waste Materials for Highway Construction: Prospect and Challenges

2019 ◽  
Vol 1378 ◽  
pp. 022058
Author(s):  
D.D. Adegoke ◽  
T. O. Ogundairo ◽  
D.O Olukanni ◽  
O.M. Olofinnade
Keyword(s):  
Highway Construction ◽  
Waste Materials ◽  
Recycled Waste

Special Rice Husk Concrete in Egypt

2011 ◽  
Vol 71-78 ◽  
pp. 3271-3274
Author(s):  
Saeed Ahme Al Sheikh
Keyword(s):  
Construction Industry ◽  
Rice Husk ◽  
Ordinary Portland Cement ◽  
Rice Husk Ash ◽  
Construction Materials ◽  
Waste Materials ◽  
Agricultural Industry ◽  
Cement Ratio ◽  
Dark Clouds ◽  
Super Plasticizer

In the late few years, Egypt has been suffering from a dark clouds resulting from burning rice husk. Studies have been undergoing to study the possibility of using rice husk instead of burning it and soiling environment. The construction industry plays an important role in many countries. Waste materials are new challenge choice for use as construction materials, because construction materials coming from a natural source are irreversible. Rice Husk Ash (RHA) is one of waste materials from agricultural industry. It has some special characteristics that can enhance the properties of concrete, when it is used as a part of the ingredients in concrete mixes. The objective of this paper is to study the mechanical properties of concrete containing ordinary Portland cement, rice husk ash and super plasticizer compared to the silica fume concrete. The water cement ratio was equal to 35% by weight for all tested specimens whereas the slump was constant at 100 +/- 20 mm.

scholarly journals Assessment of synthesis methods of SiO2 produced from rice husk and its main physicochemical characteristics

2019 ◽  
Vol 16 (3-4) ◽  
pp. 186-194
Author(s):  
K. Askaruly ◽  
Zh. Sartova ◽  
S. Azat ◽  
M. Yeleuov ◽  
A. Tauyrbekov
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Rice Variety ◽  
Geographical Area ◽  
Acid Leaching ◽  
Physicochemical Characteristics ◽  
Research Field ◽  
Waste Materials ◽  
Synthesis Methods ◽  
Human Beings

Extraction of silica from rice husk is an emerging trend in the current research field. Large amount of rice husk (RH) are treated as waste and disposed of at the landfill site. These waste materials can also cause fire, which may lead to severe environmental pollutions. The airborne particles produced from dust may induce respiratory disease to human beings. The burning of rice husk results in the formation of rice husk ash (RHA) with major SiO2 content with 10 to 20% of carbon and organic components depending on the burning conditions, the furnace type, the rice variety, the climate and the geographical area. Moreover, the commonly used silica precursor like tetraethoxysilane is more expensive, and hence rice husk ash(RHA) and other waste sources having silica are used as an alternative. Acid leaching of the rice husk can carried out to remove soluble elemental impurities and hence it increases the purity of the silica content. The organic compounds in rice husk and other waste materials can be decomposed under burning conditions. In recent years, environmental demand and sustainable development have become increasingly important. It is important to study and utilize RH biowaste, and convert RHs into valued materials. This is the focus of this research. This paper article will be methods of synthesis SiO2 from rice husk and its physical-chemical characteristics

scholarly journals SUSTAINABILITY OF THE CONCRETE BY USING RECYCLED WASTE MATERIALS

2018 ◽  
Vol 22 (02) ◽  
pp. 56-64 ◽  
Author(s):  
Dalia Adil Rasool ◽  
◽  
Mais Abdulrehman Abdulkarem ◽  
Mohammad Ali Abdulrehman ◽  
◽  
...  
Keyword(s):  
Waste Materials ◽  
Recycled Waste

Removal of fluoride with rice husk derived adsorbent from agro waste materials

2020 ◽  
Author(s):  
B. Vijila ◽  
E.H. Edinsha Gladis ◽  
J. Michael Ahitha Jose ◽  
T.M. Sharmila ◽  
J. Joseph
Keyword(s):  
Rice Husk ◽  
Waste Materials
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