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Tuesday 5 July 2016

Volume:4, Number 3, April - June 2016



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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 Tallest Bucket Elevator
With a distance between centers of 175.3 m, this is currently the tallest in the world. Read more.

Concrete, Mineral and Chemical Admixtures


(a) 5 Million Gallon Concrete Water Tank

Port Townsend, Wash., is building a 5 million-gallon concrete water-storage tank designed to withstand an earthquake. The reservoir's walls will be 39 feet tall. Read more.


(b) Movable Scaffolding
Sections of the replacement for the Gerald Desmond Bridge have begun with a movable scaffolding that lays the concrete in sections. Read more.


(c) Building High-Tech, Low-Cost Tunnels
New technology has dramatically reduced the cost—and disruption—of building tunnels under busy cities for rail, road and utility projects. Read more.

(d) Spun Concrete
In its continuing effort to improve resiliency and reliability, the Tullahoma Utilities Board (TUB) is replacing a series of wooden utility poles along Atlantic Street with spun-cast concrete poles. Read more.


(e) Repairing Earthquake-Damaged Bridge Columns in Days
Pantelides' quicker and more cost-effective process involves creating concrete donuts known as "repairs" that are lined with a composite fiber material built around the bottom and top of each column. Read more.


(f) Ground Penetrating Radar for Concrete
Ground-penetrating radar can find obstructions under concrete without destroying it. Read more.


(g) New Concrete Pavers
This article looks at "smart" slipform pavers, which can reduce construction time and increase efficiency. Read more.

(h) Recycled Concrete for Highway Resurfacing
A joint venture between Parsons Corp. and Coffman Specialties is at work on a $120 million highway resurfacing project in California's Cajon Pass. Workers broke up about 150,000 cubic yards of roadway, crushed it on-site and used the aggregate in lean concrete. Read more.


(i) Ultra-Strong Concrete
New York-based Ferrara Bros. is using a newly developed, super-strong concrete formula for the 432 Park Avenueand 55 Hudson Yards towers in New York City. The ultra-hard concrete mix is made with chemicals and can stay wet for up to 12 hours to aid in transportation. The product hardens white, is weather-resistant and is 20% lighter than a traditional mix, which allowed Ferrara Bros. to cut the number of support columns at 55 Hudson Yards. Read more.


(j) Lightweight, Strong Concrete
Aside from the weight, are that it is a cost-efficient building material that combines both superior sound and thermal insulating properties along with a one-hour per inch fire rating. Read more.

(k) The World's Longest and Deepest Rail Tunnel
The 57.1-km (35.5 mile)-long Gotthard Base Tunnel, 17 years under construction and designed to last a century, is part of a 23 billion Swiss franc infrastructure project to speed passengers and cargo by rail under the mountain chain that divides Europe's north and south. Read more.


(l) Solar Roads
Shatter-resistant, glass-coated solar panels embedded in the pavement of a bike path in the Netherlands can support 12-ton trucks -- and produce 3,000 kilowatt hours of electricity. 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 224.1R-07: Causes, Evaluation, and Repair of Cracks in Concrete Structures
The causes of cracks in concrete structures are summarized. The procedures used to evaluate cracking in concrete and the principal techniques for the repair of cracks are presented. The key methods of crack repair are discussed, and guidance is provided for their proper application. Read more.


(c) PCA Publication: Design and Control of Concrete Mixtures

The 16th edition provides a concise, current reference on concrete, including the many advances that occurred since the last edition. Besides presenting a 30 percent increase in new information, this edition has new chapters on concrete pavements and structures illustrating where concrete meets the needs of modern society. 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. They are classified into 12 groups: air-entraining; normal, mid- and high-range water-reducing; accelerating; set-retarding; extended set-control; workability-retaining; viscosity- and rheology-modifying, shrinkage-reducing and shrinkage-compensating, and corrosion-inhibiting; lithium admixtures to reduce deleterious alkali-silica reaction; permeability-reducing; and miscellaneous. Read more.


(e) ACI 308R-16 Guide to External Curing of Concrete
This guide reviews and describes practices, procedures, materials, and monitoring methods for the external curing of concrete and provides guidance for specifying curing procedures. Current curing techniques are presented and commonly accepted methods, procedures, and materials are described. Methods are given for curing structures and buildings, pavements and other slabs-on-ground, and for mass concrete. Curing methods for several specific categories of cement-based products are discussed in this document. Read more.

(f) ACI 506R-16 Guide to Shotcrete
This guide is a companion document to ACI 506.2, “Specification for Shotcrete,” and provides information on materials and properties of both dry-mix and wet-mix shotcrete. 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.


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.

(f) Bridge Girder Erection Monster machine: 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.


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