Prediction of Concrete Pumping Using Various Rheological Models Myoung Sung Choi1,2),*, Young Jin Kim1), and Jin Keun Kim2) (Received March 26, 2014, Accepted June 9, 2014, Published online July 8, 2014) Abstract: When concrete is being transported through a pipe, the lubrication layer is formed at the interface between concrete
Nov 01, 2013 · The character of the lubricating layer formed near the wall of a pipe during the flow of pumped concrete is a dominant factor facilitating concrete pumping. To predict flow rates of concrete transported by pumping, it is necessary to measure the rheological properties of the lubricating layer before pumping. In this paper, a new version of a test instrument called a tribometer is developed by considering the level of shear rate that induces the lubricating layer during real pumping.
Jun 16, 2016 · Large scale constructions needs to estimate a possibility for pumping concrete. In this paper, the state of the art on prediction of concrete pumping including analytical and experimental works is
Prediction of Concrete Pumping: Part II—Analytical Prediction and Experimental Verification The primary objective of this study is to verify if the rheological properties of the lubricating layer obtained from the newly developed tribometer can give a good prediction of the real flow rates of pumped concrete.
Large scale constructions needs to estimate a possibility for pumping concrete. In this paper, the state of the art on prediction of concrete pumping including analytical and experimental works is presented. The existing methods to measure the rheological properties of …
which concrete can be mixed, placed, consolidated and finished. A mix that is difficult to place and consolidate will increase the cost of handling, and lead to poor strength, durability and appearance. This property of concrete is generally known to affect the consistency, flow ability, pump ability, compatibility, and harshness of a concrete mix.
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Wall Street Stock Market & Finance report, prediction for the future: You'll find the Concrete Pumping Holdings Inc - Class A share forecasts, stock quote and buy / sell signals below. According to present data Concrete Pumping Holdings Inc - Class A's BBCP shares and potentially its market environment have been in a bullish cycle in the last
Jun 20, 2018 · Consequently, the optimization and development of prediction methods for concrete pumping is becoming a crucial issue for the concrete industry. Implementation of stringent regulations related to minimization of harmful carbon emissions is propelling demand for concrete pumps. Increase in construction activities and expansion in other end-use
Dec 29, 2018 · State of the Art on Prediction of Concrete Pumping. International Journal of Concrete Structures and Materials, 10(3), 75–85. Article Google Scholar Ouchi, M., & Sakue, J. (2008). Self-compactability of fresh concrete in terms of dispersion and coagulation of particles of cement subject to pumping. SCC2008, Chicago, USA.
Prediction of pumping pressure by means of new tribometer for highly-workable concrete D Feys, KH Khayat, A Perez-Schell, R Khatib Cement and Concrete Composites 57, 102-115, 2015
Concrete pumping prediction considering different measurement of the rheological properties
Sep 08, 2021 · DENVER, Sept. 08, 2021 (GLOBE NEWSWIRE) -- Concrete Pumping Holdings, Inc. (Nasdaq: BBCP) (the "Company" or "CPH"), a leading provider of concrete pumping and …
Apr 22, 2021 · The complex nature of concrete rheology has for decades been extensively studied as it is a key parameter for obtaining proper concrete structures. These studies include development of low- [ 1 ] and high-tech [ 2 ] equipment for rheological quantification as well as the determination of flow behaviors during transport [ 3 ], pumping [ 4 ], and
Oct 01, 2021 · Earnings for Concrete Pumping are expected to decrease by -12.20% in the coming year, from $0.41 to $0.36 per share. Price to Earnings Ratio vs. the Market. The P/E ratio of Concrete Pumping is -19.86, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings. Price to Earnings Ratio vs
Nov 01, 2013 · From the test results and the comparison between the measured flow rates and the flow rates calculated from the equation, it was verified that the flow rates of pumped concrete can be accurately predicted before pumping according to the rheological properties of the lubricating layer measured with the tribometer.
According to research on pumping predictions by Jang et al. (2018) and Kwon et al. (2013), when rheological properties of the slip-layer and the inner concrete are kept at constant levels during
Wall Street Stock Market & Finance report, prediction for the future: You'll find the Concrete Pumping Holdings Inc - Class A share forecasts, stock quote and buy / sell signals below. According to present data Concrete Pumping Holdings Inc - Class A's BBCP shares and potentially its market environment have been in a bullish cycle in the last
Sendhil Vigneshwar Dhanapal, Revanth Kumar Kandagaddala and Prakash Nanthagopalan (2021), A simple methodology for prediction of concrete pumping through field-based study, The Indian Concrete Journal, Vol. 95 (9), 1-9.
slip layer and parent concrete, models to predict concrete pumping (flow rate, pumping pressure, and pumpable distance) are explained. Third, influencing factors on concrete pumping are discussed with the test results of various concrete mixes. Finally, future need for research on concrete pumping is …
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