Prediction of Concrete Pumping Related Information

Neural network predictions of the simulated rheological

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

Prediction of Concrete Pumping: Part II—Analytical

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.

Simulation of Motion Behavior of Concrete in Pump Pipe by DEM

May 26, 2021 · The pumping pressure of concrete with pumping speed of 0.71 m/s in horizontal pipe, bend pipe, and vertical pipe increased by 0.0074 MPa, 0.0888 MPa, and 0.0264 MPa, respectively. The pumping pressure of concrete in the horizontal pipe was converted into pressure loss per meter (MPa/m), as shown in Table 7. <- Prev.

‪Dimitri Feys‬ - ‪Google Scholar‬

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

Prediction of Concrete Pumping: Part I—Development of New

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.

PUMPING BEHAVIOUR OF MODERN CONCRETES: …

from full-scale pumping. The proposed methodology shall promote the understanding of complex phenomena occurring in different types of concrete during pumping and reliably predict their behaviour with respect to pumpability. Keywords: Pumping, modern concretes, rheology, lubricating layer, pressure loss prediction,

State of the Art on Prediction of Concrete Pumping

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 …

PUMPING BEHAVIOUR OF MODERN CONCRETES: …

from full-scale pumping. The proposed methodology shall promote the understanding of complex phenomena occurring in different types of concrete during pumping and reliably predict their behaviour with respect to pumpability. Keywords: Pumping, modern concretes, rheology, lubricating layer, pressure loss prediction,

Concrete Pumping Holdings Reports Third Quarter Fiscal

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 …

Vol.8, No.4, pp.269–278, December 2014 DOI 10.1007/s40069

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

Civil Department | IIT Bombay

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. (Accepted).

BBCP Stock Forecast, Price & News (Concrete Pumping)

Sep 15, 2021 · Concrete Pumping Holdings, Inc. (NASDAQ:BBCP) announced its earnings results on Tuesday, September, 7th. The company reported $0.07 earnings per share for the quarter, missing the Thomson Reuters' consensus estimate of $0.11 by $0.04. Concrete Pumping had a positive trailing twelve-month return on equity of 1.17% and a negative net margin of 6.76%.

(BBCP) - Concrete Pumping Holdings Insights: Return On

Jul 13, 2021 · Concrete Pumping Holdings reported Q2 earnings per share at $0.0/share, which did not meet analyst predictions of $0.02/share. Related Articles (BBCP) Concrete Pumping Holdings: Return On …

Prediction of Concrete Pumping: Part I—Development of New

Prediction of Concrete Pumping: Part I—Development of New Tribometer for Analysis of Lubricating Layer. 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.

Advances in Concrete Construction - techno-press.org

The most crucial factor determining the pumping performance of concrete is the characteristics of the lubricating layer formed between the pipe wall and the inner concrete. Thus, it is important to accurately identify the rheological properties of the lubricating layer to predict the pumping of concrete. In this study, a new method is proposed for measuring the rheological properties of the

State of the Art on Prediction of Concrete Pumping

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 …

Prediction of Concrete Pumping: Part II—Analytical

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.

Extrusion process simulation and layer shape prediction

Jul 30, 2020 · Extrusion process simulation and layer shape prediction during 3D-concrete-printing using the Particle Finite Element Method Janis Reinolda;1, Venkatesh Naidu Nerella b, Viktor Mechtcherine, Gun ther Meschkea aInstitute for Structural Mechanics, Ruhr-Universit at Bochum, Universit atsstraˇe 150, 44801 Bochum, Germany bInstitute of Construction Materials, Technische Universit at Dresden

State of the Art on Prediction of Concrete Pumping

State of the Art on Prediction of Concrete Pumping

A new method to estimate rheological properties of

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