Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Electric measurement system for prediction of blocking of fresh concrete flowing in pipes
The objective in this paper is to propose a new system which can examine the condition of flowing concrete and can predict and prevent the blocking of concrete. A new device was developed for measuring the electric resistance of concrete flowing through the pipelines. The system was applied to the experimental test of concrete pumping both in the laboratory and on site. As a result, it is considered that the coefficient of the variance of time sequential data of measured electric resistance and low frequency components of the data reduced by the frequency analysis could be the indices for prediction of the blockage of concrete flow through pipelines. And also that these indices are correlated with the degree of the 'fluctuation' which means that aggregates vibrate during flowing and induce oscillations in the mortar flow.
Electric measurement system for prediction of blocking of fresh concrete flowing in pipes
The objective in this paper is to propose a new system which can examine the condition of flowing concrete and can predict and prevent the blocking of concrete. A new device was developed for measuring the electric resistance of concrete flowing through the pipelines. The system was applied to the experimental test of concrete pumping both in the laboratory and on site. As a result, it is considered that the coefficient of the variance of time sequential data of measured electric resistance and low frequency components of the data reduced by the frequency analysis could be the indices for prediction of the blockage of concrete flow through pipelines. And also that these indices are correlated with the degree of the 'fluctuation' which means that aggregates vibrate during flowing and induce oscillations in the mortar flow.
Electric measurement system for prediction of blocking of fresh concrete flowing in pipes
Elektrisches Messsystem fuer die Vorhersage von Verstopfungen von in Rohren fliessendem Frischbeton
Hashimoto, C. (Autor:in) / Maruyama, K. (Autor:in) / Shimizu, K. (Autor:in)
1988
6 Seiten, 14 Bilder, 4 Tabellen, 3 Quellen
Aufsatz (Konferenz)
Englisch
Mathematical Modeling of Shear Constitutive Relationship for Flowing Fresh Concrete
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Discharge of pipes flowing partly full
| Engineering Index Backfile | 1943
Flow conditions of fresh mortar and concrete in different pipes
| British Library Online Contents | 2009
Flow conditions of fresh mortar and concrete in different pipes
| Online Contents | 2009
Flow conditions of fresh mortar and concrete in different pipes
| Online Contents | 2009