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Saturday 12 July 2014

Volume:2, Number:3, April - June 2014




                           * Cement  Manufacturing


                                                                                               
                                  * Concrete, Mineral & Chemical Admixtures


                                         * Teaching, Training and Research


                                                  * Trade and Industry




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URL: http://www.drjdbapat.com
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This e-bulletin is published to share views on the subjects mentioned as above. Dr J D Bapat may not necessarily be in agreement with the views expressed by experts or quoted in links. The products and services are mentioned only to create an awareness, the quality and other aspects should be verified by the buyers/users; quote the reference number when you contact the suppliers. Visit the URL and see title 'Bulletin - Cement & Concrete' for the objective and other editorial details.

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Cement Manufacturing


(a) Turning Waste to Cement
A cement company based in Deerfield Beach, Titan America, has begun turning selected waste, such as car bumpers and scrap cardboard, into construction material. The technology reduces the amount of trash headed to landfills, and it cuts air pollution because the materials used produce fewer emissions than coal. The process can help Florida reach its goal of recycling 75 percent of municipal solid waste by 2020, public officials say. Read more. 


(b) New Green Cement Reduces Carbon Footprint by 40%
A new form of green cement developed in France has the potential to reduce the carbon footprint of concrete by as much as 40 per cent. Read more. 


(c) Cement Plant: Converting Smokestacks into Profit Centers
Every kilogram of algae that Pond Biofuels produces prevents two kilograms of CO2 from being emitted into the atmosphere. The algal farms connected to these industrial facilities turning their smokestacks into profit centres, all using Pond Biofuels licensed technology. Read more. 


(d) LafargeHolcim: The power of the mega-merger
The idea may be out there but LafargeHolcim has a long way to go before it actually exists. Read more.

Concrete, Mineral and Chemical Admixtures


(a) Glow-in-the-dark Roads Make Debut in Netherlands
Light-absorbing glow-in-the-dark road markings have replaced streetlights on a 500m stretch of highway in the Netherlands. Read more. 


(b) Fiber Optic Sensors to Monitor Reinforced Concrete Corrosion
Fiber optic sensors can detect the moisture, expansion, and cracks in reinforced concrete, enabling engineers to observe a structure's condition and predict its lifetime. Read more. 


(c) Solidia Technologies Finds Potential Savings of 2 Billion Tons of Water Per Year
New CO2-curing technology reduces water consumption by up to 80%, CO2 emissions by up to 70%, and curing time to one day. Read more.


(d) Future of Skyscrapers
With tall buildings growing ever higher, it is becoming increasingly critical to optimise structural systems in order to ensure strength and stability. The rise of composite megacolumns could be the most effective answer. Read more. 


(e) World's First Energy Positive Building
The world is ready for an even fresher catchphrase than “net zero” buildings (NZB) to describe environmentally friendly buildings. Say hello to Norway's Powerhouse Kjørbo,the world’s first “energy positive building" (EPB) or “net positive" building. Read more. 


(f) Carbon Capture can Revolutionise Green Construction
Past research has shown that treating concrete with CO2 can improve its strength, reduce water absorption, improve resistance to chloride permeability and improve freeze-thaw performance. Carbonation never compromises quality, colour or texture. Read more.


(g) Radioactive Waste in Concrete Casks
Dozens of containers of radioactive waste from Los Alamos National Laboratory are being packed as a precaution into concrete casks at a temporary storage facility in West Texas. Read more.


(h) Making Infrastructure Maintenance Cost-effective, Sustainable 
Discussed in this article are the use of robots for pipe-lining technology; a cement additive that fortifies concrete's strength by as much as 40%; and a spray-on synthetic high-performance fiber that contains fiber optic sensors, which can send signals to equipment for structural condition monitoring. Read more. 


(i) Super Skinny Skyscraper Trend

Modern construction materials and structural and design technologies are enabling builders to construct tall, narrow towers on small plots. Read more. 

Books
(a) Mineral Admixtures in Cement and Concrete, Author: Jayant D. Bapat, CRC Press, Taylor & Francis Group 
Written for engineers, this book focuses on how to make more workable and durable concrete using mineral admixtures. For each mineral admixture, the book looks at manufacturing and processing, physical characteristics, chemical and mineralogical composition, quality control, and reported experiences. It also examines the provisions of national standards on the admixture’s addition to cement and concrete. Offering a deeper understanding of mineral admixtures, it encourages engineers to more effectively use these and other wastes in cement and concrete to support more sustainable growth of the cement and construction industry. Read More.


(b) ACI 305R-10 Guide to Hot Weather Concreting
Environmental factors, such as high ambient temperature, low humidity, high wind, or both low humidity and high wind, affect concrete properties and the construction operations of mixing, transporting, and placing of the concrete materials. This guide provides measures that can be taken to minimize the undesirable effects of these environmental factors and reduce the potential for serious problems. Read more.


(c) ACI 305R-10 Guide to Hot Weather Concreting
Environmental factors, such as high ambient temperature, low humidity, high wind, or both low humidity and high wind, affect concrete properties and the construction operations of mixing, transporting, and placing of the concrete materials. This guide provides measures that can be taken to minimize the undesirable effects of these environmental factors and reduce the potential for serious problems. Read more.


(d) ACI 523.3R-14: Guide for Cellular Concretes Above 800 kg/m3
This guide addresses the materials, properties, design, production, and placement of cellular concretes with as-cast densities greater than 50 lb/ft3 (800 kg/m3). The usual density range of cellular concrete is 20 to 120 lb/ft3 (320 to 1920 kg/m3). Cellular concretes in the lower portion of this range are used for many applications, such as roof thermal insulation and geotechnical fills. Cellular concretes in the higher density range are used for cast-in-place, precast applications and nonstructural floor fills. Read more.


(e) Concrete Repair to EN 1504: Diagnosis, Design, Principles and Practice
Authors: Michael Raupach, Till Büttner Published: May 15, 2014 by CRC Press
Presents a systematic approach to concrete repair based on EN 1504. Outlines the main methods in detail. Provides a large number of case studies. Read more.


Teaching, Training and Research
(a) Professional Training Course on Durable, High Performance Cement & Concrete with Mineral & Chemical Admixtures
Dr J D Bapat offers professional training course on “Durable, High Performance Cement & Concrete with Mineral & Chemical Admixtures ”. Two-day course is useful for engineers working in cement plants, cement and admixtures marketing, construction sites, higher education. Duration and content: tailor-made as per participants’ requirement. Venue: as per sponsor’s preference. Download brochure. Read more.


(b) Durable Concrete Indeed
A new water-repellent concrete impregnated with tiny super-strong fibers promises to leave roads and bridges free of major cracks for up to 120 years. Read more.


(c) Water in Concrete
Amount of water in concrete controls many fresh and hardened properties of concrete including workability, compressive strengths, permeability and watertightness, durability and weathering, drying shrinkage and potential for cracking. For these reasons, limiting and controlling the amount of water in concrete is important for both constructability and service life. Read more.


(d) Low-Carbon Cement
The Ecole Polytechnique Federal de Lausanne in Switzerland has developed a form of eco-friendly cement that can potentially cut construction sites' carbon emissions by 40%. Read more.  

Download/View

(a) Cement Industry in India –Moving Towards Sustainable Growth by Dr J D Bapat
Article Published in Indian Cement Review, Voll.28, No. 4, Nov. 2013, pp 61-63. Download article.

(b) Petcoke as Fuel for Cement Production: Benefits & Challenges. View ppt.

(c) Techno Marketing of Cement, Admixtures and Equipment. View ppt.

(d) Importance of Continuing Education for Professionals Working in Cement, Concrete and Construction
The field of cement, concrete and construction is continuously developing. Professionals need to update knowledge and skills to achieve performance and economy in concrete. View publication and comment.

(e) Robot for Concrete Recycling                                                                                                      An electrically powered robot uses water to effectively erase concrete while vacuuming up its separate components that can be used again.View slide show.

(f) Come Across as a Professional. View. 


(g) Creating an Unbreakable Password. View. 



Discussions

(a) Join Group: Cement, Concrete and Construction on Linkedin.

(b) Join Group: Indian Society of Cement Engineers (ISCE) on Linkedin.

(c) Join Group: Mineral Admixtures in Cement & Concrete on Linkedin.

(d) Effect of particle size of Class F fly ash on water demand. Participate in this discussion on Linkedin.

(e) ASTM allows water addition in transit. Participate in this discussion on Linkedin. 


(f) Which one is better pozzolan. Participate in this discussion on Linkedin. 

(g) Importance of continuing education for professionals working in cement, concrete and construction. Participate in this discussion on Linkedin.  


Events


(a) Alternative Fuels Workshop -  Perspectives for the Cement Industry:  3-4 June 2014, Marquis Reforma Hotel & Spa, Mexico City, Mexico. Read more.   


(b) Elsevier International Conference on Sustainable Design, Engineering and Construction - ICSDEC 2015: 10 - 13 May 2015,  Chicago, USA. Readmore. 
(c) ICDCS 2014: 4th International Conference on Durability of Concrete Structures,
July 23-26, 2014,  Purdue University, West Lafayette, IN 47907, USA. Read more.




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