DESIGN OF CONCRETE PUMPING CIRCUIT - TRID Database

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  • FLOW OF FRESH CONCRETE THROUGH PIPE LINES - TRID

    If unsaturated concrete is to be pumped through the pipe lines then the pressure losses are calculated by using a theory of friction. The solution obtained from this theory shows that unsaturated concrete is practically unpumpable. For saturated concrete two models are considered. In the first model the requisite pumping pressure is ...

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  • Estimation of the Pumping Pressure from Concrete ...

    A new method is proposed to estimate pumping pressure based on concrete composition without experimental measurements. Previous studies show that the pumping pressure depends on the interface friction between concrete and the wall of the pumping pipes. This friction is determined by the thickness and the rheology of the boundary layer formed at the interface.

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  • PLACING CONCRETE BY PUMPING METHODS - TRID

    The importance of saturating lightweight aggregates is stressed. Suggestions are given for layout of lines; for maintaining uniform delivery rate as well as uniform quality of concrete at the end of the line; and for cleaning out pipelines. Corporate Authors: American Concrete Institute. P.O. Box 19150 Redford Station 22400 Seven Mile Road

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  • PUMPING PREDICTION MODEL FOR HIGHWAY CONCRETE PAVEMENTS

    TRID the TRIS and ITRD database. PUMPING PREDICTION MODEL FOR HIGHWAY CONCRETE PAVEMENTS. Pumping prediction models are essential in the design and economic analysis of rigid pavements. Existing pumping prediction models are reviewed and shown to be insufficient to be used in the prediction of void progression and the economic analysis of rigid ...

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