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A platform for research: civil engineering, architecture and urbanism
CONCRETE PUMP PUMPABILITY EVALUATION METHOD AND CONCRETE PUMP PUMPABILITY EVALUATION DEVICE
PROBLEM TO BE SOLVED: To determine a force-feed allowable distance in a state where quality is secured while an actual piping distance is simulated at low cost.SOLUTION: A concrete pump pumpability evaluation method includes an inflow process in which concrete is flowed into a pipe 10 and a force-feed process in which concrete is subjected to reciprocation moving between a first point A and a second point B in the pipe 10 alternately using force-feed means 20 installed at both ends of the pipe 10, respectively. In the force-feed process, concrete is continued to be force-fed until a closed state where flowability of the concrete becomes a constant value or smaller in the pipe 10 while the force-feed means 20 measures the number of force-feeding, and a force-feed allowable distance is calculated from the number of force-feeding when a closed state occurs. In the force-feed process, a pressure within the pipe 10 is measured and it is preferably determined that the closed state occurs when the pressure within the pipe 10 exceeds a prescribed pressure.SELECTED DRAWING: Figure 4
【課題】低コストで実配管距離を模擬しつつ、品質を確保した状態での圧送可能距離を判定する。【解決手段】パイプ１０内にコンクリートを流し込む流入工程と、パイプ１０の両端にそれぞれ設置された圧送手段２０を交互に用いて、コンクリートをパイプ１０内の第一地点Ａと第二地点Ｂとの間で往復移動させる圧送工程と、を備え、圧送工程では、圧送手段２０による圧送回数を計測しながら、パイプ１０内でコンクリートの流動性が一定値以下となる閉塞状態になるまで圧送を続け、閉塞状態になったときに圧送回数から圧送可能距離を算出することを特徴とする。圧送工程では、パイプ１０内の圧力を計測しており、パイプ１０内の圧力が所定の圧力を超えたときに閉塞状態になったと判定することが好ましい。【選択図】図４
CONCRETE PUMP PUMPABILITY EVALUATION METHOD AND CONCRETE PUMP PUMPABILITY EVALUATION DEVICE
PROBLEM TO BE SOLVED: To determine a force-feed allowable distance in a state where quality is secured while an actual piping distance is simulated at low cost.SOLUTION: A concrete pump pumpability evaluation method includes an inflow process in which concrete is flowed into a pipe 10 and a force-feed process in which concrete is subjected to reciprocation moving between a first point A and a second point B in the pipe 10 alternately using force-feed means 20 installed at both ends of the pipe 10, respectively. In the force-feed process, concrete is continued to be force-fed until a closed state where flowability of the concrete becomes a constant value or smaller in the pipe 10 while the force-feed means 20 measures the number of force-feeding, and a force-feed allowable distance is calculated from the number of force-feeding when a closed state occurs. In the force-feed process, a pressure within the pipe 10 is measured and it is preferably determined that the closed state occurs when the pressure within the pipe 10 exceeds a prescribed pressure.SELECTED DRAWING: Figure 4
【課題】低コストで実配管距離を模擬しつつ、品質を確保した状態での圧送可能距離を判定する。【解決手段】パイプ１０内にコンクリートを流し込む流入工程と、パイプ１０の両端にそれぞれ設置された圧送手段２０を交互に用いて、コンクリートをパイプ１０内の第一地点Ａと第二地点Ｂとの間で往復移動させる圧送工程と、を備え、圧送工程では、圧送手段２０による圧送回数を計測しながら、パイプ１０内でコンクリートの流動性が一定値以下となる閉塞状態になるまで圧送を続け、閉塞状態になったときに圧送回数から圧送可能距離を算出することを特徴とする。圧送工程では、パイプ１０内の圧力を計測しており、パイプ１０内の圧力が所定の圧力を超えたときに閉塞状態になったと判定することが好ましい。【選択図】図４
CONCRETE PUMP PUMPABILITY EVALUATION METHOD AND CONCRETE PUMP PUMPABILITY EVALUATION DEVICE
コンクリートポンプ圧送性評価方法およびコンクリートポンプ圧送性評価装置
LIANG JUN (author) / MARUYA TAKESHI (author) / SAKAMOTO ATSUSHI (author)
2017-06-08
Patent
Electronic Resource
Japanese
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