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Thursday 10 October 2013

Volume: 1, Number: 4, July - September 2013


 


              * Cement  Manufacturing

    
                    * Concrete,  Mineral  & Chemical  Admixtures

       

                       * Teaching, Training and Research
          
         
                     * Trade and Industry





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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 10,000 professionals in my network. Join Dr J D Bapat's  professional network (quote my yahoo ID): on Linkedin   on Twitter @ cemcretecon
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Cement Manufacturing


(a) Ball Mill Internals

The internals of a ball mill can be divided in 4 groups: - Head liners - Shell linings - Diaphragms - Grinding media This article will review each group and especially those who have a direct impact on the grinding efficiency. Today, the Feed Head Liners and the 1st Chamber Linings. Read More.

(b) Pollution-Killing Cement

The proprietary technology involves mixing the particles of titanium oxide within white or grey cement, but apparently it can be used with all other varieties of concrete, including plaster and mortar. Read more. 

(c) Crack-Proof Cement by CEMEX
The new cement is especially designed at the molecular level to reduce cracking due to plastic contraction by up to 80%, during the curing periods for concrete and mortars. It also creates a more manageable mix, with better integration and cohesion. Read more.


Concrete, Mineral and Chemical Admixtures


(a) Home-Made Binder Recipe 


Researchers in Michel Barsoum’s group at Drexel University have been cooking up this seemingly new technology over the last several years. Read more.

(b) Concrete Recycling Robot
The conceptual robot makes it possible to intelligently deconstruct a building, without any of the fuss or mess. Read more.

(c) Recycled Concrete Green Concrete

Water in the rainwater ponds can be very rich in phosphorus, and if it is discharged into a lake, it can lead to an increase in algae growth. That can lead to oxygen depletion and a reduction in the number of species that can live in the water. By letting the pond water pass through a filter of crushed concrete, up to 90 per cent of the phosphorus can be removed. Read more.

(d) Concrete-Composite Offshore Floating Wind Turbine
The first offshore floating wind turbine has been deployed off the coast of Brewer, Maine. The project, overseen by the University of Maine’s Advanced Structures and Composites Center, is an early attempt to harness some of the strong offshore winds and paves the way for wind farms to be set up 50 miles off the coast where the winds are strong and consistent. Backers of offshore wind turbines believe they can harvest 5 gigawatts of power by 2030. Read more.


(e) Limestone Powder Enhances Performance of 'Green' Concrete
Adding limestone powder to "green" concrete mixtures—those containing substantial amounts of fly ash, a byproduct of coal-burning power plants—can significantly improve performance, report researchers from the US, National Institute of Standards and Technology (NIST) and the Federal Highway Administration (FHWA). Readmore.


(f) A Case for Front-Discharge RMC Mixers
Time is money, and that’s the essence of a front-discharge mixer. It drives right up to where concrete’s needed and, after the driver adds chute extensions, starts offloading. For ready mix fleets, the fast operation sometimes enables a truck to do one extra load a day, which adds to revenue and profit. But rear-discharge mixers cost less to buy and, some say, to maintain. Read more.


(g) First Luxury net Zero Energy Home
Marc Rutenberg, the CEO of the Florida company Marc Rutenberg Homes, has recently successfully designed and built a luxury home that complies with and even surpasses all Energy Star standards and is LEED Platinum certified. The Castaway III, as the house is called, measures 4,552-square feet, which is about 3,100 square feet larger than the average zero-energy home. This house proves that there is no need to sacrifice comfort and luxury to reduce one’s carbon footprint. Read more.


(h) Cement-free Concrete
The University of Queensland Global Change Institute, Australia, have taken environmentally sustainable design a step further and precast world-first geopolymer concrete floor panels which, with significantly lower embodied energy, helps to reduce the building’s carbon footprint. Readmore.

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 522.1-13 Specification for Pervious Concrete Pavement
This Specification covers materials, preparation, forming, placing, finishing, jointing, curing, and quality control of pervious concrete pavement. Provisions governing testing, evaluation, and acceptance of pervious concrete pavement are included. ReadMore.

(c) ACI 228.2R-13: Report on Nondestructive Test Methods for Evaluation of Concrete in Structures

A review is presented of nondestructive test (NDT) methods for evaluating the condition of concrete and steel reinforcement in structures. Read More. 

(d) ACI 229 R-13 Report on Controlled Low Strength Materials

Controlled low-strength material (CLSM) is a self-consolidating cementitious material used primarily as a backfill as an alternative to compacted fill. This report contains information on applications; materials; properties; proportioning; mixing, transporting, and placing; quality control; and low-density CLSM using preformed foam. Read More.
(e) 515.2R-13: ACI Guide to Selecting Protective Treatments for Concrete
Concrete structures can be subjected to physical or chemical attacks by various substances, including water, acids, alkalis, salt solutions, and organic chemicals. Damage may vary in intensity from surface discoloration or roughening to catastrophic loss of structural integrity due to acid attack. This guide addresses the effects of various substances on untreated concrete and provides recommendations for protective treatments. Read more.

(f) SP-17(11): ACI Reinforced Concrete Design Manual
Published in two volumes and provides design and analysis in accordance with ACI 318-11.
Information is presented in three sections:Explanatory Material, Design Examples and, Design Aids. Read more. 

Teaching, Training and Research

(a) ACI e-Learning

Fiber-Reinforce Concrete: Three new ACI learning courses. Read More.


(b) Pervious Concrete Update
The newly revised Pervious Concrete Research Compilation is now available from the Ready Mixed Concrete (RMC) Research and Education Foundation. Read More.

(c) Tablet Buying Guide. Read online.


Downloads 

(a) 
The American Concrete Institute (ACI) has  posted two videos related to portland-limestone cements on its YouTube channel. Download – 1 and Download - 2


(b) Tips to buy a digital camera. Download.


(c) Make-Money-from-Home-Scams. Download.


(d) This new report ranks America's 34 largest cities on what they are doing to save energy and costs in five key areas. Download.


(e) Travel smart with Google Maps. Download.


(f) Guidelines on safe use concrete pump by British Concrete Pumping Interest Group (BCPIG). Download. 


Discussions

(a) Optimising the dosage of superplasticiser. Follow this Linkedin discussion.



(b) Training needs of professionals in cement, concrete and construction industry. Participate in this Linkedin discussion.

(c) How to prevent thermal cracks in mass pouring of concrete. Participate in this Linkedin discussion. 


(d) Effect of pumping on concrete air-void content. Participate in this Linkedin discussion.


(e) Avoiding shrinkage cracks in concrete. Participate in this Linkedin discussion. 


(f) Assessing the quality of chemical admixture. participate in this Linkedin disacussion. 


(g) Cellular concrete. Participate in this Linkedin discussion.


Events

(a) Dr J D Bapat organised a training programme on "Durable Concrete with Mineral Admixtures", on 24-25 September 2013, under the aegis of iKnowledge Malaysia. View the content, proceedings, photo album and download the brochure here.


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Sunday 30 June 2013

Volume: 1, Number: 3, April - June 2013

                                   
 * Cement  Manufacturing

    

       * Concrete,  Mineral  & Chemical  Admixtures

       

           * Teaching, Training and Research
          
         
                * Trade and Industry


-----------------------------------------------------------------

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 10,000 professionals in my network. Join Dr J D Bapat's  professional network (quote my yahoo ID): on Linkedin   on Twitter @ cemcretecon
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Cement Manufacturing


(a) Photocatalytic Cement that Eats Smog
Chicago is pioneering the use of a groundbreaking new paving material which is capable of expunging the adjacent air of pollution. As part of a raft of measures to make the streets of the Windy City more environmentally friendly, the city’s government has decided to use photocatalytic cement as a thin, permeable pavement for the bicycle and parking lanes on Blue Island Avenue and Cermak Road. Read more.

(b) Green Blended Cement with Metakaolin
A Cuban cement plant has launched industrial trials to produce environmentally-friendly cement blended with metakaolin, according to the National News Agency. Readmore.


(c) Best Available Techniques (BAT) for the production of cement, lime and magnesium oxide in the EU
The BAT cover cover the implementation of environmental management systems, the monitoring and management of emissions to air, water and soil for each of the sectors studied – cement, lime, and magnesium oxide. Other aspects such as noise, use of resources and energy, process losses/waste issues are also analysed and best environmental practices are determined. Read more.

(d) Solar Power for Cement Works
An energy company has submitted a planning application to build a new solar farm to generate electricity for cement works. Lark Energy has applied for planning permission 
to develop an 8MW solar farm on land near to Pit Lane, Ketton, which is owned by Hanson Cement. The plans would see two fields transformed into a solar farm with a life span of 25 to 30 years, which would generate electricity for the cement works. Read more.

(e) Plastic waste as fuel
The Goa State Pollution Control Board (GSPCB), India, has signed a memorandum of understanding (MoU) with Vasavdatta Cement Company to use the plastic waste generated across Goa, a Southern state of India, as fuel for its manufacturing plant. Read More.

Concrete, Mineral and Chemical Admixtures

(a) Making Concrete Green
According to a new report from the National Institute of Standards and Technology (NIST), USA, the potential engineering performance, energy-efficiency and environmental benefits of making green concrete, make it a challenge worth tackling. Read more.

(b) Sustainable Concrete with Fly Ash
See practical example how replacement of cement with fly ash led to sustainable construction and also improved strength, durability of concrete and reduced cost. Read more.


(c) Reducing Carbon Footprint of Concrete Mixes
Central Concrete Announces First Environmental Product Declarations (EPDs) for Concrete Mixes in the United States. The genesis of the Concrete EPD process began with the formation of the Carbon Leadership Forum, a broad alliance of researchers, associations and companies within the building industry dedicated to (1) bringing methods and data of life cycle assessment (LCA) to the design and construction practice and (2) devising standards that would account for and report carbon footprints of building products and systems. Read more.

(d) Recycled Asphalt for Pavements
According to a survey conducted by the National Asphalt Pavement Association (NAPA) in partnership with the Federal Highway Administration (FHWA), about 66.7 million tons of reclaimed asphalt pavement (RAP) and 1.2 million tons of reclaimed asphalt shingles (RAS) were collected in the U.S. during 2011 for use in new pavements.Read more.

(e) Millau Viaduct
Framed by the windshield, seven lithe, stately masts, each with fanning cables, sail 1½ miles across the Tarn Gorge, holding up a roadbed 885 feet above the Tarn River, above even the cloud line that often shrouds the valley. Read More.

(f) Top 5 Things to Know About External Concrete Vibrators
Concrete must be consolidated properly to achieve a high-quality end product - strength, durability, uniformity, and beauty are all affected by the consolidation process. Vibration is the most common method used to consolidate concrete. 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 Publication: E4-12 Chemical Admixtures for Concrete                                             This document discusses commonly used chemical admixtures for concrete and describes the basic use of these admixtures. It is targeted at those in the concrete industry not involved in determining the specific mixture proportions of concrete or in measuring the properties of the concrete. Readmore. 

(c) ACI Publication: 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) 350.5-12 ACI Specifications for Environmental Concrete structures
The document covers materials and proportioning of concrete; reinforcement and prestressing reinforcement; production, placing, finishing, and curing of concrete; formwork design and construction; and shotcrete. Methods of treatment of joints and embedded items, repair of surface defects, and finishing of formed and unformed surfaces are specified. Separate sections are devoted to architectural concrete, mass concrete, and internal and external post-tensioned prestressed concrete. Provisions governing testing, evaluation, and acceptance of concrete as well as acceptance of the structure are included. Read more.

(d) Worked Examples for the Design of Concrete Structures to Eurocode 2,                     Author: Tony Threlfall, CRC Press
This practical design guide illustrates through worked examples how Eurocode 2 may be used in practice. Complete and detailed designs of six archetypal building and public utility structures are provided. The book caters to students and engineers with little or no practical experience of design, as well as to more experienced engineers who may be unfamiliar with Eurocode 2. Read more.

(e) ACI (308-213)R-13: Report on Internally Cured Concrete Using Prewetted Absorptive Lightweight Aggregate
This report introduces the concepts of and describes the process benefit and applications for using prewetted lightweight aggregate to increase cement hydration in internally cured concrete. It also describes mixture proportioning and absorptive material selection and discusses the benefits relating to sustainability. ReadMore.


Teaching, Training and Research

(a) ACI e-learning
Three ACI courses on the Testing of Self-Consolidating Concrete. Read more.


Downloads

(a) Google Nexus 10 review. Download.

(b) Make your own website. View.

Discussions

(a) Concrete durability or strength. Participate in this Linkedin discussion.

Events

(a) C-TDC
C-TDC: Certificate of Training in Durability of Concrete: Jointly organised by Indian Concrete Institute (ICI), Pune, India Centre and Dr J D Bapat, on 27-28 July 2013. Read Details


Products and Services: Quote the reference number when you contact the suppliers.


(a) Sensocrete Technology Saves Cost and Improves Quality 
(Reference No: PBPS/1(3), 2013/SEN) 
A new innovative technology for on line monitoring of Slump, Volume and Temperature of the fresh concrete in the Transit Mixer is available now. A canadian company named Sensocrete Inc has invented this technology and the same has won NOVA 2011 award for innovations in construction equipments. Voltas (TATA Company) has tied up with sensocrete for sales distribution and after sale servicing of this new innovative product "Concrete Optimizer". You can contact Mr.P.Vidhyashankar AGM Voltas ltd, MOB 9845445024 e mail id: vps@voltas.com for further details. 

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Monday 1 April 2013

PB Archives


               


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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 10,000 professionals in my network. Join Dr J D Bapat's  professional network (quote my yahoo ID): on Linkedin   on Twitter @ cemcretecon

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