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Mixing Time And Strength Of Concrete
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Book Synopsis Mixing Time and Strength of Concrete by : Sajjad Qaiser
Download or read book Mixing Time and Strength of Concrete written by Sajjad Qaiser and published by Createspace Independent Publishing Platform. This book was released on 2017-11-21 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about the Relationship between Mixing Time and Compressive Strength of Concrete. It involves the study of variations of compressive strength of concrete with mixing time at different ages like 7, 14 and 28 days. For this purpose three mixes, 1:2:4, 1:2:4 with plasticizer and 1:4:8, having total 90 cubes of 4 inch (30 cubes for each Batch) were cast having different mixing times varying from 3 minutes to 5 minutes with the difference in mixing time interval of 30 seconds. The cubes were placed under normal conditions for the purpose of curing and testing. The testing was done on Denison Compression Testing Machine. The failure load was worked out and then the compressive strength of concrete was calculated in 'Psi' by dividing the failure load by cross-sectional area of the concrete cube. Graphs displaying the variations of strength of concrete with different mixing time intervals were plotted for all the three mixes and from these graphs, the conclusions were drawn. It was observed that the compressive strength of concrete increases with increase in mixing time but with the increase in mixing time after a certain time of mixing, the concrete strength tends to decline. The time at which the strength of concrete is maximum, is the optimum time for which the concrete should be mixed thoroughly to achieve maximum strength. This time was found out to be between 4 minutes to 4.5 minutes for different mixes used in the experiment. Thus we may conclude from this research work that concrete should be mixed for at least 4 minutes but not more than 4.5 minutes to achieve maximum compressive strength.
Book Synopsis Effect of Mixing Time on Air Content and Compressive Strength of Concrete by : Jeffrey A. Schaefer
Download or read book Effect of Mixing Time on Air Content and Compressive Strength of Concrete written by Jeffrey A. Schaefer and published by . This book was released on 1988 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Effect of Long Time Mixing on the Strength of Concrete by : B. R. Lee
Download or read book Investigation of the Effect of Long Time Mixing on the Strength of Concrete written by B. R. Lee and published by . This book was released on 1932 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of the Uniformity of Mixing of Portland Cement and Bituminous Concrete for Various Mixing Times by the Use of Radioisotopes (final Technical Report for that Phase of the Program Dealing with Portland Cement Concrete by : Clyde Ezra Poovey
Download or read book Determination of the Uniformity of Mixing of Portland Cement and Bituminous Concrete for Various Mixing Times by the Use of Radioisotopes (final Technical Report for that Phase of the Program Dealing with Portland Cement Concrete written by Clyde Ezra Poovey and published by . This book was released on 1961 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Relationship Between Mixing Time and Type of Concrete Mixer by : Arne Johansson
Download or read book The Relationship Between Mixing Time and Type of Concrete Mixer written by Arne Johansson and published by . This book was released on 1971 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quality Control of Central Mix Concrete During Mixing and Transporting by : D. E. Gordinier
Download or read book Quality Control of Central Mix Concrete During Mixing and Transporting written by D. E. Gordinier and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selected literature from 1925 to date was surveyed, with emphasis on mixing time, haul time and extended agitation, overloading, and retempering. Selection of mix time is best judged on a mixer-to-mixer basis, with minimum mix time depending largely upon method of introducing materials into the mixer. Compressive strength and freeze-thaw protection are not adversely affected by hauls of several hours duration. Overloading is not recommended because of possible equipment damage and reduced mixing efficiency. Retempering generally reduces strength and freeze-thaw resistance.
Book Synopsis The Effect of Temperature of Mixing Water Upon the Strength of Concrete by : Clifford Otto Bruden
Download or read book The Effect of Temperature of Mixing Water Upon the Strength of Concrete written by Clifford Otto Bruden and published by . This book was released on 1923 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Roads written by and published by . This book was released on 1930 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Realationship Between Mixing Time and Type of Concrete Mixer by : Arne Johansson
Download or read book The Realationship Between Mixing Time and Type of Concrete Mixer written by Arne Johansson and published by . This book was released on 1971 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Admixtures for Concrete - Improvement of Properties by : E. Vazques
Download or read book Admixtures for Concrete - Improvement of Properties written by E. Vazques and published by CRC Press. This book was released on 2004-11-23 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical admixtures are used to modify the properties and behaviour of fresh and hardened concrete. They enable more economic construction and the achievement of special properties such as high strength or durability. This book presents new research information from an International RILEM Symposium on six main topics: workability, setting, strength, durability, other properties and technology.
Author :Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure Publisher :National Academies Press ISBN 13 :0309562317 Total Pages :125 pages Book Rating :4.3/5 (95 download)
Book Synopsis Nonconventional Concrete Technologies by : Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure
Download or read book Nonconventional Concrete Technologies written by Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure and published by National Academies Press. This book was released on 1997-04-08 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonconventional Concrete Technologies: Renewal of the Highway Infrastructure identifies research and development opportunities in innovative, nonconventional materials and processes that have the potential to accelerate the construction process, improve the durability of highway pavement and bridges, and enhance the serviceability and longevity of new construction under adverse conditions.
Book Synopsis Effect of Mix Times on PCC Properties by : James K. Cable
Download or read book Effect of Mix Times on PCC Properties written by James K. Cable and published by . This book was released on 1998 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this research were the collection and evaluation of the data pertaining to the importance of concrete mixing time on air content and distribution, consolidation and workability for pavement construction. American Society for Testing and Materials (ASTM) standard C 94 was used to determine the significance of the mixing time on the consistency of the mix being delivered and placed on grade. Measurements of unit weight, slump, air content, retained coarse aggregate and compressive strength were used to compare the consistency of the mix in the hauling unit at the point of mixing and at the point placement. An analysis of variance was performed on the data collected from the field tests. Results were used to establish the relationship between selected mixing time and the portland cement concrete properties tested. The results were also used to define the effect of testing location (center and side of truck, and on the grade) on the concrete properties. Compressive strength test concepts were used to analyze the hardened concrete pavement strength. Cores were obtained at various locations on each project on or between vibrator locations to evaluate the variance in each sample, between locations, and mixing times. A low-vacuum scanning electron microscope (SEM) was used to study air void parameters in the concrete cores. Combining the data from these analysis thickness measurements and ride in Iowa will provide a foundation for the formulation of a performance based matrix. Analysis of the air voids in the hardened concrete provides a description of the dispersion of the cemtitious materials (specifically flyash) and air void characteristics in the pavement. Air void characteristics measured included size, shape and distribution.
Download or read book Concrete written by and published by . This book was released on 1927 with total page 770 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete written by Harvey Whipple and published by . This book was released on 1918 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advances in Ready Mixed Concrete Technology by : Ravindra K. Dhir OBE
Download or read book Advances in Ready Mixed Concrete Technology written by Ravindra K. Dhir OBE and published by Elsevier. This book was released on 2013-09-03 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Ready Mixed Concrete Technology contains the proceedings of the first International Conference on Ready-Mixed Concrete held at Dundee University in Scotland from September 29 to October 1, 1975. Contributors focus on the significant progress that has been made in ready mixed concrete technology. Some practices are highlighted along with possible areas for research. This text is organized around seven themes; the first of which deals with plant and equipment. Production methods and their development in the ready mixed concrete industry are reviewed, along with developments in batching plant and equipment to meet the needs of the ready mixed concrete industry. The chapters that follow explore the materials used in making concrete, properties of fresh and hardened concrete, mix design and quality control, and transportation and placing. The final section discusses the economics of ready mixed concrete, with emphasis on the cost of placing concrete by pump and the relative economics of alternative materials in Portland cement concrete. This book will be of interest to ready mixed concrete producers, their customers in the construction industry, and their suppliers of concrete materials, plant, and equipment.
Book Synopsis Concrete Construction Engineering Handbook by : Edward G. Nawy
Download or read book Concrete Construction Engineering Handbook written by Edward G. Nawy and published by CRC Press. This book was released on 2008-06-24 with total page 1586 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concrete Construction Engineering Handbook, Second Edition provides in depth coverage of concrete construction engineering and technology. It features state-of-the-art discussions on what design engineers and constructors need to know about concrete, focusing on - The latest advances in engineered concrete materials Reinforced concrete construction Specialized construction techniques Design recommendations for high performance With the newly revised edition of this essential handbook, designers, constructors, educators, and field personnel will learn how to produce the best and most durably engineered constructed facilities.
Download or read book Engineering World written by and published by . This book was released on 1926 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
