CONCRETE MEASUREMENT METHOD AND CONCRETE EVALUATION METHOD

• Main Authors: SAKAI MASAKI, YOSHIDA RISA, KAMISHIRO TAIDO
• Format: Patent
• Language: English; Japanese
• Published: 22.02.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a method of directly and nondestructively measuring cured concrete.SOLUTION: A method involves obliquely transmitting radiation through a corner of a concrete wall 1 by placing a radiation source rod 30 on one outer wall surface 1A constituting the corner and placing a main body 20 on the other outer wall surface 1B. Density and moisture content of the concrete wall 1 is measured using the corner by irradiating the outer wall surface 1A with radiation from a radiation source 32 of the radiation source rod 30, detecting the radiation transmitting through to the outer wall surface 1B using a radiation detection unit of the main body 20, and computing density and moisture content based on a result of the detection using a processing unit.SELECTED DRAWING: Figure 3 【課題】硬化したコンクリートを直接非破壊測定する方法を提供する。【解決手段】隅角部をなす一方の外壁面１Ａに線源棒３０を押し当て、他方の外壁面１Ｂに本体２０を押し当て、コンクリート壁１の隅角部に斜めに放射線を透過させる方法であって、線源棒３０の放射線源３２から外壁面１Ａに放射線を照射し、外壁面１Ｂに透過してきた放射線を本体２０の放射線検出部で検出し、その検出結果に基づいて処理部が密度や水分量を算出することにより、隅角部を用いてコンクリート壁１の密度や水分量を測定する。【選択図】図３