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Thursday 11 January 2018

Volume 6, Number 1, October - December 2017


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URL: http://www.drjdbapat.com
Feedback: (1) consult@drjdbapat.com   (2) jdbapat@yahoo.co.in

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.

This Bulletin directly reaches nearly 20,000 professionals in my network.
Professional Bulletin: View Archives

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Cement Manufacturing


(a) World's first "negative emission" power plant turns CO2 into stone
For several years an international team of scientists has been working on a novel way to turn captured CO2 into solid minerals. The project is dubbed CarbFix and involves bounding the CO2 to water and then pumping it 700 meters (2,300 ft) underground. This CO2 solution, on contact with the deep basalt rock, was found to quickly form into a carbonate mineral. Read more.

Concrete, Mineral and Chemical Admixtures


(a) Nagpur Maha Metro (India) Reaches Trial Stage in a Record Period

Six days after conducting its first trial runs, Nagpur’s Maha Metro, conducted its first official trial run on 30 September, 2017, making it the fastest metro project to reach the trial stage in India. Read more


(b) Three Ways to Improve Bridges of the Future

Strategic application of new materials, effective construction techniques and comprehensive data capture are just a few of the tactics engineers today are using to increase bridges' life-span. Read more.


(c) Prototypes of a U.S.-Mexico Border Wall
The construction of prototype walls along the U.S.-Mexico border is nearing completion, according to the Border Patrol in California. A total of eight wall prototypes are being built in a fenced-off area in Otay Mesa. Construction began in late September and is expected to take 30 days. Read more.

(d) Constructing Domes by Inflating Hardened Concrete
Curved concrete shells are impeccably strong and efficient, but, the process of making requires large amounts of resources and planning. Even the formwork that only contains the wet concrete needs excessive amounts of material to be built. While the structures are incredibly efficient, the construction process is not. The  researchers at the TU Wien university now developed a method to inflate already hardened concrete into curved domes. Read more.

(e) Rebar-Free Concrete Core
The Rainier Square Tower planned in Seattle will use a rebar-free concrete core, a process called coupled steel-plate composite shear wall, to improve seismic resistance by getting rid of rebar congestion. A model of the core design is being constructed. Read more.

(f) Ultra-Thin Concrete Structure
Facilitated through the use of a novel formwork system consisting of a net of steel cables and a polymer fabric stretched into a reusable scaffolding structure. Read more.

(g) Carbon Fiber to Reinforce Concrete Column
In June of 2016, the South Carolina Department of Transportation (SCDOT) was in the midst of building a new interchange at the intersection of I-85/I-385 in Greenville, S.C. During construction, severe localized spalling was found on the cover concrete of one column of a two-column pier supporting the I-385 northbound ramp. Read more.


(h) Tower Bridge Built with Precast Elements
A new bridge connecting Portsmouth, N.H., and Kittery, Maine, features what engineers believe is the first-ever use of precast-concrete segmental towers on a vertical-lift bridge. Read more.


(i) Enhancing Construction Safety
Five things contractors need to know in order to stay safe on the jobsite. Read more.

(j) Formwork to Speed Up Construction
MFE’s aluminium formwork solutions minimise construction and environmental costs by casting building components in one operation. 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 MNL-15(16) Field Reference Manual (Formerly SP-15)
The American Concrete Institute’s Field Reference Manual is a compilation of ACI 301-16 Specifications for Structural Concrete and additional ACI documents on measuring, mixing, transporting, and placing concrete; concrete pumping methods; hot- and cold-weather concreting; consolidation; and concrete formwork. Read more.

(c) Concrete Pavement Restoration (CPR) 
The American Concrete Pavement Association (ACPA) says planning CPR needs to begin at roughly two-thirds to three-quarters of a pavement’s original design life. Read more. 


(d) ACI 212.3R-16 Report on Chemical Admixtures for Concrete
This report reviews several categories and types of chemical admixtures and their use in unique concrete technologies. 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) Insulated Concrete Forms 
Insulated concrete forms are permanent, sandwich-type of forms, on which concrete is poured between two insulation layers. Read more. 

(c) Earthquake-Resistant Concrete
The material, called eco-friendly ductile cementitious composite, combines polymer-based fibers, cement, fly ash and more industrial additives, and has stayed intact in seismic intensities as high as magnitude 9.1. Read more.

(d) New Technique to Test Cement Strength
North Carolina State University (NCSU) introduced a technique called micro-capillary compression to test cement strength, reports R&D Magazine. Read more.  

(e) How Technology is Changing the Construction Industry
In the present day, technology can create and manage things that we would never have deemed possible a decade ago, and it’s plain to see how technology is transforming workplaces. Read more.

(f) Measuring Compressive Strength
Avoid these common mistakes while measuring the compressive strength of concrete. Read more.

(g) Hurricane-Proof Concrete Roof
Florida International University professor Arindam Gan Chowdhury is developing what he believes could be a hurricane-proof concrete roof for residences. 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) Workshop on "Achieving Excellence Through Mindfulness": View Details.

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.


Events

(a) Cemtech 2018
Registration is now open for the forthcoming Cemtech Middle East & Africa 2018 conference and exhibition, taking place at the JW Marriott Marquis in Dubai, UAE, on 17-20 February, 2018. Read more. 


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