environmental implications of the use of biocement

specializing in the production of large, medium and small concrete mixers, concrete mixing stations, stabilized soil mixing stations and other equipment. It is a heavy industry enterprise integrating R & production and sales.

Environmental implications of the use of bio-cement ...

Apr 01, 2021  The environmental assessment could suggest further improvement for complying with the environmental and structural standards (Røyne, 2017). Thus, this research has studied the environmental implications of the use of treated RCA as a complete substitution of NCA.

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Environmental implications of the use of bio-cement ...

Environmental implications of the use of bio-cement treated recycled aggregate in concrete. ... Further environmental mitigation strategies for concrete with MCP treated aggregates has considered to improve its environmental performance in terms of global warming impact and cumulative energy demand. This study demonstrates that the use of 100% ...

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Environmental implications of the use of bio-cement ...

While MCP process avoided the use of energy intensive cement, this research discovers that concrete with MCP treated aggregates was found to produce marginally higher environmental impacts than other concrete mixes mainly due to additional emissions associated with the bio-cement treatment of RCA.

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Environmental implications of the use of bio-cement ...

Environmental implications of the use of bio-cement treated recycled aggregate in concrete ... The biocement mortar cubs were prepared using the Taguchi L9 design pattern and analysed followed by ...

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Biocement - an overview ScienceDirect Topics

Biocement can also be used to reduce the water conductivity of sand through bioclogging, as illustrated in Fig. 19.1.One of the methods developed by our research group is biocrust. This method uses urease-producing bacteria to precipitate a layer of calcium carbonate on top of sand as shown in Fig. 19.8.This hard crust layer has a permeability of less than 10 –7 m/s (Chu et al., 2012) and ...

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Biocement: Green Building- and Energy-Saving Material ...

During their lifecycle, the green buildings minimize the use of resources (energy and water); reduce the harmful impact on the ecology, and provide better indoor environment.

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Environmental impacts of chemical and microbial grouting ...

Nov 27, 2019  Then, the results of conventional grouting were compared with the results of biocement samples which were gathered from previous studies to discuss the efficiency and environmental impacts. Environmental concerns in the present study were focused on the energy and calcium usage of conventional and microbial grouting.

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Biocement: Cement-like Material which Derived by ...

Nov 22, 2017  Biocement Authors: Sumit Kumar Dubey Cement production needs high energy (temperature up to 1500°C) and emit carbon dioxide (CO 2) in the production process but bio-cement can be produced at ambient temperature by bioprocess as well as emit less carbon dioxide. Biocement simply means the cement-like material which derived by biological cell (more precisely microbial

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What is Biocement? - Civil Engineering Portal - Biggest ...

Sir, I liked Your New idea of biocement. I would really like to learn more about your further research outcomes. Moreover i am also intrigued and wonder how the cement would do in an ” environment rich in organic food and water. Also I also wonder what effects this cement has with time duration.

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Want to cut carbon emissions? Try growing cement bricks ...

Mar 07, 2017  The biocement itself carries an off-white, almost translucent crystal that readily absorbs colors and adapts to different textures. They can make bricks look old and burnt without using fire, or ...

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Effects of environmental factors on microbial induced ...

May 30, 2011  Environmental factors (end product ammonium ions, free oxygen) may also affect the urease activity and there may be differences between the activity of urease within a viable cell or as a free enzyme. The effect of environmental factors on the urease activity was assessed by monitoring changes in the media conductivity.

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BioCement GM ROMABIO

BioCement GM 1.5 is ROMABIO’s Classic Stucco Large Aggregate Finish and perfect for both interior exterior uses. Like many of our other stuccos and plasters, BioCement GM 1.5 is designed with a slow set capacity to allow for unlimited techniques and finishes: sponge trowel, skip trowel, travertine, semi-smooth finishes, etc.

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Statistical Modeling of Environmental Factors on Microbial ...

Aug 09, 2015  Calcium carbonate is a widely used raw material by many industries. It can be precipitated through microbial process within soil pores as cementitious bonding agent between grains for geotechnical applications. It is called microbially induced calcium carbonate precipitation (MICP). Designing an appropriate biogrout material for injection into soil is essential for controlling the amount,

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Gelinsky, M._爱学术

biocement d (1) biocompatibility (1) bone cement (1) bone marrow stroma cells (1) bone substitution (1) calcium phosphate bone cement (1) 内容类型 期刊 (23) 刊名 acta biomaterialia (2) journal of biomedical materials research part a (2) journal of tissue engineering and regenerative medicine (2) biofabrication (1

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Materials Free Full-Text Tensile Strength of ...

Artificially bio-cemented sands treated with microbially induced calcite precipitation are weakly cemented rocks representing intermediate materials between locked and carbonate sands. Variations in cementation significantly affect the strength of sample, particularly tensile stregth. The modes of fracture and the surface characteristics resulting from the indirect tensile strength tests ...

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Isolation and Characterization of Urease-Producing Soil ...

Jul 09, 2021  1. Introduction. Urease is an enzyme that catalyzes the hydrolysis of urea by all plants and many algae, fungi, and bacteria [].As a consequence, urease activity (urea amidohydrolase: EC 3.5.1.5) is widely distributed in soil [2, 3].Microbial urease has also been studied in clinical samples as it is related to the virulence of pathogenic microorganisms [], contributing to urinary stones ...

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Biocement: Green Building- and Energy-Saving Material ...

During their lifecycle, the green buildings minimize the use of resources (energy and water); reduce the harmful impact on the ecology, and provide better indoor environment.

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Production of biocement with marine bacteria ...

Mar 01, 2021  Introduction. One of the main challenges nowadays is to change our infrastructure materials to be more environmental friendly, as we are facing a serious problem of natural resources depletion and environmental damages leading to diminish of the natural biodiversity (Lee et al., 2018).One innovative approach to decrease the harmful impact on the natural environment is to use

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Biocement: Cement-like Material which Derived by ...

Nov 22, 2017  Biocement Authors: Sumit Kumar Dubey Cement production needs high energy (temperature up to 1500°C) and emit carbon dioxide (CO 2) in the production process but bio-cement can be produced at ambient temperature by bioprocess as well as emit less carbon dioxide. Biocement simply means the cement-like material which derived by biological cell (more precisely microbial

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(PDF) Bio Cementation: A Novel Technique and Approach ...

Feasibility studies on the use of sludge to produce cement as a means of ultimate sludge disposal have takes28 days for full strength but Biocement need very less been initiated. time. Thus Biocement is an environment-friendly alternative [1].

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(PDF) Biocement Fabrication and Design Application for a ...

Nov 07, 2018  The biocement mold was fabricated with a non-porous, non-reactive PVC (polyvinyl chloride) cylinder pipe (0.3 mm in thickness, 30 mm in diameter,

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Use of Biological Additives in Concrete Pavements: A ...

Sep 03, 2020  Based on the metabolic pathways similar to bioconcrete, biocement uses soil from the local site and a mixture of nutrients and bacteria to form biocementation. Production process, feasibility, benefits, and concerns are currently the main research subjects of biocement.

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BioCement GF ROMABIO

BioCement GF 1.0 is ROMABIO’s Classic Stucco Medium Aggregate Finish and perfect for both interior exterior uses. This product is designed with a slow set quality to allow for unlimited techniques and finishes: sponge trowel, skip trowel, and smooth finishes, to name a few.

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Investigating mechanical properties and biocement ...

Sep 30, 2020  The use of different bacterial strains to precipitate CaCO 3 for biocement application has been previously reported. Achal et al. 36 showed that Sporosarcina pasteurii

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Eco-Friendly Construction: Science Engineering Book ...

To avoid environmental issues, it is recommended to go for green building where construction material will be of biological origin. Considering the 5% CO 2 emission generated by cement industry, it is primary requisite to replace cement with biocement (Worrell, Price, Martin, Hendriks, Meida, 2001). Blend of biosilica is biocement.

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Statistical Modeling of Environmental Factors on Microbial ...

Aug 09, 2015  Calcium carbonate is a widely used raw material by many industries. It can be precipitated through microbial process within soil pores as cementitious bonding agent between grains for geotechnical applications. It is called microbially induced calcium carbonate precipitation (MICP). Designing an appropriate biogrout material for injection into soil is essential for controlling the amount,

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Mechanical behaviour of biocemented sands at various ...

Oct 23, 2018  Previous studies have shown that biocement, or microbially induced calcite precipitation, can improve the mechanical behaviour of clean sand. However, the behaviour of biocemented sand is affected by several factors. In this paper, triaxial consolidated drained tests and K0 consolidation tests were carried out on sands (Ottawa sand, ASTM graded) with varying biocement treatment passes and ...

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Sustainability, Energy and Development: A Proposal of ...

and environmental consequences. Policymakers need methods for measuring and assessing the current and future effects of energy use on human health, human society, air, soil and water. They need to determine whether current energy use is sustainable and, if not, how to change it

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World Environment Day 2021 - Forresters

Jun 05, 2021  Since 2012, the company has used microorganisms to grow sustainable, structural biocement® – essentially, they grow cement the same way nature does, preventing the need to emit carbon. Ginger Krieg Dosier, co-founder and CEO of Biomason told us how biocement is currently being used in projects throughout Northern Europe.

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Efficient option of industrial wastewater resources in ...

Apr 21, 2020  The water absorption of biocement mortar was noticed as 15.89% at 28 days without organic wastewater, whereas 15.51%, 15.58%, 15.06% and 14.87% of water absorption in biocement

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