Testing for Optimum Pumpability of Concrete

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  • PLACING CONCRETE BY PUMPING METHODS

    Rigid and flexible pipelines are discussed and couplings and other accessories described. Recommendations for proportioning pumpable concrete suggest optimum gradation of aggregates; outline water, cement, and admixture requirements; and emphasize the need for field testing of trial mixes for pumpability.

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  • (PDF) Ultra-High-Performance Concrete: Development of On

    suitable test methods for assessing the pumpability of concrete." Ba chelor's thesis, University of Twente, 200 7. [21] Zhang, Min-Hon g, Chiara F. F erraris, Huaning Zhu, Vincent Picandet, Max A

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  • Testing pumpability of concrete using Sliding Pipe

    UNDERSTANDING THE PUMPABILITY OF CONCRETE

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  • Effect of lubrication layer on velocity profile of

    Jan 22, 2015 · Best JF, Lane RO (1980) Testing for optimum pumpability of concrete. Concr Int 2(10):9–17. 17. Kaplan D (2000) Pompage des bétons. In: Laboratoire Central des Ponts et Chaussées. Ecole Central des Ponts et Chaussées. 18. Chapdelaine F (2007) Étude fondamentale et pratique sur le pompage du béton.

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  • Impact on strength of pavment concrete by using fly ash

    in the event of high volume fly debris concrete is less when contrasted with Portland concrete cement. As measure of water utilized in high volume fly debris concrete is less so the concrete glue shaped is about 25% while if there should arise an occurrence of Portland concrete solid concrete glue framed is …

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  • What is permeability of concrete? Factors affecting the

    The concrete sample or test sample is placed right in the middle of the apparatus and same distance apart from both the reservoirs. In one reservoir is a 3.0% NaCl solution and in the other reservoir is a 0.3 M NaOH solution. Since a voltage source is provided, the …

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  • Quality Requirements of Pumped Concrete | Engineersdaily

    Testing a concrete mixture for pumpability involves duplicating anticipated job conditions from beginning to end. A full-scale field test for pumpability should be considered to evaluate both the mixture proportions and pumping equipment. Prior use of a mixture and pumping equipment on another job may furnish evidence of pumpability if job

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  • Aggregates for Concrete - Memphis

    A full-scale pumping test is conducted with a total circuit length of 525 m. • Pumping leads to considerable changes in the properties of fresh concrete. • Smaller viscosity and larger pressure loss cause larger discharge. • Fiber addition is possible with insignificant influence on the pumpability …

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  • ASTM C1019 - 20 Standard Test Method for Sampling and

    C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens. C143/C143M Test Method for Slump of Hydraulic-Cement Concrete. C476 Specification for Grout for Masonry. C511 Specification for Mixing Rooms, Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes.

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  • Paper Awards - American Concrete Institute

    Title: Testing for Optimum Pumpability of Concrete Author(s): J.F. Best and R.O. Lane, Publication: Concrete International Volume: 2 Issue: 10 Appears on pages(s): 9-17 Keywords: aggregates; fly ash; mix proportioning; mortars (material); pastes; pumped concrete; sands; testing equipment. Date: 10/1/1980 Abstract: A testing and evaluation program was conducted at the TVA Laboratories to

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  • CONCRETE RHEOLOGY | calmetrix

    The Pheso rheometer is such a device designed for testing of inhomogeneous mixtures. Especially recommended for high performance concrete. Help determine the optimum dosage of admixtures or Supplementary Materials with different cements . Assess pumpability of concrete, e.g. for high rise construction or other mass concrete projects .

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  • Predicting Pumpability and Shootability of Crushed

    Nov 14, 2016 · This study aims to estimate the pumpability and shootability of wet-mix shotcrete (WMS) made with crushed aggregates and various admixtures such as silica fume, fly ash, ground granulated blast furnace slag (GGBFS), metakaolin, and steel fiber based on rheological properties. The IBB rheometer was employed as an apparatus to measure the rheological properties of freshly mixed …

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  • 20 Factors Affecting Durability of Concrete - Structural Guide

    Chloride and sulfates attach to the reinforcement leas to the corrosion and as a result structure lift span reduces significantly. Carbonation is also a process of deterioration of the concrete and for more information, articles on this web could be referred. Eventually, concrete gets cracked due to this issue and structures cannot be occupied. . Attention shall be made at the design stages to

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  • Application of Empirical Models to Optimizing Concrete

    Oct 21, 2017 · Morinaga, S.: Pumpability of concrete and pumping pressure in pipelines. In: Paper Presented at the Proceedings of Rilem Seminar, Leeds (1973) Google Scholar Best, J., Lane, R.: Testing for optimum pumpability of concrete.

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  • Selecting Optimum Cement Contents for Stabilizing

    the recycled concrete. For future testing of aggregate base materials to determine optimum cement contents, the joint utilization of the strength test and the TST is recommended. Sufficient quantities of cement should be added to tested 1 Optimum Moisture Content and Maximum Dry Density..23 2 Moisture Susceptibility Test Results for

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  • Quality Requirements of Pumped Concrete | Engineersdaily

    J. Floyd Best and Ralph O. Lane for their paper "Testing for Optimum Pumpability of Concrete," published in Concrete International: Design & Construction, V. 2 1981 L. M. Meyer and W. F. Perenchio for their paper "Theory of Concrete Slump Loss as Related to the Use of Chemical Admixtures," published in Concrete International: Design

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  • Mix Design and Pumped Concrete - Civil Engineering Portal

    (e) Testing for pumpability There is no recognized laboratory apparatus or precise piece of equipment available to test the pumpability of a mix in the laboratory. The pumpability of the mix therefore be checked at site under field conditions.

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  • Manufacturing of Concrete with Retarders

    found the optimum percentage level of retarders on the basis of setting time and Compressive strength. improves pumpability of concrete by extended setting period and improved strength of concrete: • Vicat's Apparatus Test • Cube Test IJSER. International Journal of Scientific & Engineering Research, Volume 5, Issue 4, April-2014

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  • Research Article Modification of Grout Properties in

    Flow Cone Test. For the purpose of determining the uidity of grouts incorporated in making prepacked aggre-gate concrete, Flow Cone Test was conducted. e process involvedrecordingthetimeofe uxofgroutfromastandard coneinconformitywithASTMC -[ ]. ecapacityof theconeismL.Yet,inthisstudy,a1725 ± 5 mL cone was used to perform the test.

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  • 8 ESSENTIAL QUALITY REQUIREMENTS OF PUMPED …

    8 ESSENTIAL QUALITY REQUIREMENTS OF PUMPED CONCRETE - Civil…

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