- [기술동향]살아있는 콘크리트
- 美연구진 박테리아로 만들어… 부서져도 스스로 복구·증식 박테리아로 만든 살아 있는 콘크리트가 나왔다. 영양분을 주면 결함을 스스로 복구하고 증식도 한다. 대량생산 공정이 개발되면 에너지를 많이 쓰는 콘크리트를 대신해 친환경 건축자재로 활용될 수 있을 것으로 전망된다.미국 콜로라도대의 윌 스루바르 교수 연구진은 지난 15일(현지 시각) 재료공학 분야 국제학술지 '매터'에 "미생물을 이용해 벽돌처럼 단단한 구조물을 만드는 데 성공했다"고 발표했다. 논문에 따르면 강도는 벽돌이나 석재를 붙이는 데 쓰는 모르타르와 비슷했다.연구진은 먼저 원하는 모양의 틀에 광합성 세균인 시아노박테리아와 젤라틴, 모래를 넣고 고온에서 햇빛을 비췄다. 묵처럼 말랑말랑한 젤라틴은 박테리아에게 수분과 영양분을 공급하는 역할을 한다. 몇 시간이 지나자 시아노박테리아는 모래 주위로 탄산칼슘 결정을 만들었다. 바다에서 조개껍데기가 만들어지는 것과 같은 과정이다. 이후 온도를 낮추고 수분을 제거하자 단단한 콘크리트가 됐다.박테리아로 만든 콘크리트는 마치 살아 있는 생물처럼 손상된 부분을 스스로 치료하고 증식한다. 연구진은 살아 있는 콘크리트로 만든 벽돌을 반으로 잘라 틀에 넣고 다시 젤라틴과 모래를 줘 온전한 벽돌 두 개를 만들었다. 이런 과정을 세 번 반복해 벽돌 하나를 여덟 개로 늘렸다.살아 있는 콘크리트는 온실가스 배출 문제를 해결할 수 있다. 콘크리트는 지구에서 인류가 물 다음으로 많이 쓰는 재료다. 그러나 원료인 시멘트는 석회석을 태워 만든다. 이 과정에서 인류가 배출하는 이산화탄소의 6%가 발생한다. 스루바르 교수는 "독성물질을 만나면 빛을 내는 유전자를 박테리아에 넣으면 콘크리트가 환경 오염 감지기 역할을 할 수 있다"며 "화성 같은 다른 행성이나 사막처럼 자원이 부족한 곳에서도 박테리아만 있으면 현지 재료로 건축물을 만들 수 있을 것"이라고 기대했다. [이영완 과학전문기자 email@example.com]출처 : 조선일보(www.chosun.com)Source : https://n.news.naver.com/article/023/0003501201
- [행사정보]The 9th Internation...
- The 9th International Conference of Asian Concrete Federation (ACF 2020) Theme • Advanced & Innovative Designs - Durability design, service life design, life cycle design, performance based design, Design for extreme loads and extreme conditions, etc.• Advanced & Innovative Materials for Concrete Construction - New cementitious materials; New technologies for aggregates, admixtures and other additives for construction; 3-D printing materials, self-healing materials, functional materials, etc.• Advanced & Innovative Construction Techniques - Advanced technologies for construction, 3-D printing technologies, precast concrete construction, construction using new materials such as UHPC, etc. • Advanced & Innovative Technologies for Maintenance - Advanced techniques for inspection, testing, intervention, repair materials, strengthening, maintenance planning, etc.• New Codes, Standards and Specifications•Other related topics Practical Information• Date: November, 2020• Venue: Phuket, Thailand• Source: http://acf2020.com/public/• Deadlines: February 29, 2020 (Abstract submission) May 15, 2020 (Full paper submission) September 30, 2020 (Early-bird registration)
- [기술동향]Self-healing Concrete...
- Self-healing Concrete Market 2019 by Company Profile, Deals Type, Brand Analysis, Size, Share, Key Trends & Opportunities Forecast to 2025 A report added to the rich database of Qurate Business Intelligence, titled Self-healing Concrete Market report enhanced on worldwide competition by topmost prime manufactures which providing information such as company profiles, product picture and specification, capacity, production, price, cost, revenue and contact information. Self-healing Concrete Market report firstly introduced the Self-healing Concrete basics: Definitions, Classifications, Applications and Market Overview; Product Specifications; Manufacturing Processes; Cost Structures, Raw Materials and so on. Self-healing Concrete industry Forecast 2019-2025 report offers detailed information about the key factors influencing the growth of the market (Growth Potential, Opportunities, Drivers, Industry-Specific Challenges and Risks). Get Free Sample PDF Brochure Here@ https://www.qurateresearch.com/report/sample/MCM/QBI-AMR-MCM-232149Key players in the Self-healing Concrete markets include Market : Basilisk, Acciona Infraestructureas S.A., Avecom N.V., Comercializadora Espanola De Innovaciones Y Materiales, COWI A/S, Devan-Micropolis, and Fescon. Apart from Basilisk, other companies are profiled as they have participated in the HEALCON project for self-healing concrete. The global self-healing concrete market was valued at $216,720.0 thousand in 2017 and is projected to reach $1,375,088.0 thousand by 2025, growing at a CAGR of 26.4 % from 2018 to 2025. Self-healing concrete is developed by the Hendrik Jonkers of Delft Technical University in the Netherlands and commercialized by Basilisk Concrete in 2015. This technology uses Bacillus subtilis group of bacteria to enhance the self-healing property of concrete. Moreover, self-healing concretes are known to provide long life to the infrastructure without the need for human intervention in maintenance and repair. On the basis of product, this report displays the sales volume, revenue (Million USD), product price, Self-healing Concrete market share and growth rate of each type, primarily split into-Intrinsic healingCapsule based healingVascular healingBy End UserOn the basis on the end users/applications, this report focuses on the status and outlook for major applications/end users, sales volume, Self-healing Concrete market share and growth rate of Self-healing Concrete for each application, including-IndustrialCivil InfrastructureCheck the Best Discount on This Report@ https://www.qurateresearch.com/report/discount/MCM/QBI-AMR-MCM-232149Market Segment by Regions, regional analysis covers : Americas, United States, Canada, Mexico, Brazil, APAC, China, Japan, Korea, Southeast Asia, India, Australia, Europe, Germany, France, UK, Italy, Russia, Spain, Middle East & Africa, Egypt, South Africa, Israel, Turkey, GCC Countries. Self-healing concrete is developed with the aim to reduce maintenance cost while increasing life of civil engineering structures. The concept of self-healing has also been introduced in other material such as metal, polymer asphalt, and fiber enforced composites. Basilisk, based in Netherland, offers three type of products, which include healing agent, self-healing repair mortar MR3, and Liquid Repair system ER7. Currently, these materials are produced in less quantity for the construction market because they are being tested through various projects in different phases in the European market. Another research at Ghent University in Belgium, are embedding the bacteria in microcapsules or microgels, where they are expected to survive for hundreds of years. The global self-healing concrete market is segmented into type, end users, and region. Based on type, the market is divided into intrinsic healing, capsule based healing, and vascular healing. Based on end user, it is divided into residential and commercial, industrial, and civil infrastructure. Based on region, the market is analyzed across North America, Europe, Asia-Pacific and LAMEA. Purchase Full Research Report@ https://www.qurateresearch.com/report/buy/MCM/QBI-AMR-MCM-232149Reasons to Purchase Self-healing Concrete Market Report:Analyzing the outlook of the Self-healing Concrete market with the recent trends and SWOT analysis.Market dynamics scenario, along with growth opportunities of the Self-healing Concrete market in the years to come.Self-healing Concrete Market segmentation analysis including qualitative and quantitative research incorporating the impact of economic and non-economic aspects.Regional and country level analysis integrating the demand and supply forces that are influencing the growth of Self-healing Concrete market.Self-healing Concrete Market value (USD Million) and volume (Units Million) data for each segment and sub-segment.Competitive landscape involving the Self-healing Concrete market share of major players, along with the new projects and strategies adopted by players in the past 5 year.Comprehensive company profiles covering the product offerings, key financial information, recent developments, SWOT analysis, and strategies employed by the major Self-healing Concrete market players.Source : https://isbusinessintelligence.com/self-healing-concrete-market-2019-by-company-profile-deals-type-brand-analysis-size-share-key-trends-opportunities-forecast-to-2025/
- [기술동향]FUTURE PROOF: Biot...
- FUTURE PROOF: Biotech for smart buildings -By Oon Yeoh - August 11, 2019 @ 8:20am WHEN you hear the word “biotech”, it normally conjures up images of agriculture, food production and medicine. You don’t normally think of buildings. Yet biotech is something that can help enhance buildings of the future. We’re not talking about plants that help to green up a building but the use of fungi and bacteria in building materials to enhance the quality of the structure. MYCELIUMThe organic brick structure “Hy-Fi” was the centrepiece of the Museum of Modern Art’s summer festival from June until September 2014. Mycelium, the root network of fungus, grows very easily and over a short period of time. All it requires is some form of nutrient – sugar, for example – from pieces of wood or wood chips, and it will grow very quickly. It’s like yeast except instead of growing as a single cell, mycelium is multi-cellular and can grow into something quite big. It assembles a network of long, tiny fibres that are very strong. The most typical example of this is a mushroom. Of course, if you want to use it for building materials, you won’t be looking to grow mushrooms. Rather than allow it to grow into its natural form, the mycelium can be shaped into various structures by controlling the temperature, the amount of carbon dioxide it receives, and the humidity and the airflow around it. Mycelium's fast-growing fibres produce materials that can be used for packaging and construction. Best of all, the technology to do this is already here so this isn’t something we’re looking at happening in the future. And many academic institutions have programmes that look into incorporating mycelium into construction materials so that they can literally grow over time. The best example of a mycelium-based structure is the Hy-Fi installation in New York, which was on display in 2014. It consisted of a 13-metre tower made completely out of 10,000 mycelium bricks that were naturally grown from shredded corn stalks and specially-developed mushroom mycelium. The structure temporarily diverted the natural carbon cycle to produce a building that grew out of nothing but earth, and required no energy and produced no waste or by-products. After three months, the structure was disassembled and the bricks decomposed to compost. BACTERIAL SPORESThe design focuses on the use of innovative building materials.Cracks in a building’s concrete spell trouble. If not fixed, rain would seep in and damage the structure, including causing the steel to rust. A research group at Delft University of Technology is looking to fix that through mixing bacterial spores into the concrete mix. When water seeps into such concrete, it will animate the bacteria which in turns triggers a chemical process causing new calcite crystals to grow and heal the concrete. Henk Jonkers, project leader at Delft, says what makes this limestone-producing bacteria so special is the fact that they’re able to survive in concrete for more than 200 years and come into play when the concrete is damaged. “For example, if cracks appear as a result of pressure on the concrete, the concrete will heal these cracks itself,” says Jonkers. One can easily imagine how useful self-healing concrete would be for buildings of the future. Says Benoit Battistelli, the president of the European Patent Office: “This innovation is clearly looking towards the future. Bacterial concrete will extend the service life of bridges, streets and tunnels and give a completely new perspective to concrete production.” MICROBIAL FUEL CELLS Hy-Fi Zero carbon emissions compostable structure.Most buildings are constantly taking in waste that needs to be removed and treated. How about using such waste to generate energy instead? That’s exactly what a team of researchers on an EU project called Living Architecture is working on. They hope to develop a new type of microbial fuel cell, which takes domestic waste and generates small amounts of power. These fuel cells would be integrated into the bricks of the building, which take in waste water and bacteria and convert them into energy. The Living Architecture project aims to transform bathrooms, kitchens and commercial spaces into environmentally-sensitive, productive sites, with wall sections in the rooms being replaced with bioreactors (or self-contained microbial systems). | One type of bioreactor is a fuel cell that houses anaerobic bacteria to produce electricity and clean water. Another is an algae photo-bioreactor that produces biomass for fuel or food. The third type is a synthetic bioreactor that can make alcohol or other plant-based materials. A good, practical example of use of microbial fuel cells is the BIQ (Bio-Intelligent Quotient) House in Hamburg, Germany. It is an apartment building that’s the world’s first algae-powered structure. The two sides of the building have an outer shell where microalgae grow. Sunlight and carbon dioxide combine to produce enough biomass to generate electricity. The translucent tanks that contain the algae also regulate the building’s temperature by absorbing more sunshine as the biomass increases. The trend today is to create a smart building or smart home. Usually this refers to the Internet of Things (IoT), but a smart building or home could also incorporate biotech to make it smart, ecologically-sustainable and behave like an eco-system of sorts. When you combine biotech with IoT, you have really built a building for the future. Oon Yeoh is a consultant with experiences in print, online and mobile media. Reach him at firstname.lastname@example.org. Source : https://www.nst.com.my/lifestyle/sunday-vibes/2019/08/511975/future-proof-biotech-smart-buildings