SYSTEM FOR ESTIMATING MOISTURE CONTENT CONTAINED IN CEMENT WATER KNEADED BODY, METHOD FOR ESTIMATING MOISTURE CONTENT CONTAINED IN CEMENT WATER KNEADED BODY, AND SENSOR FOR ESTIMATING MOISTURE CONTENT CONTAINED IN CEMENT WATER KNEADED BODY

To provide a system capable of being used for a cement water kneaded body in both pre-cured and post-cured states, and capable of estimating a moisture content contained in a cement water kneaded body in a simple way.SOLUTION: A system according to the present invention is a system for estimating a moisture content contained in a cement water kneaded body belonging to any one of fresh concrete after casting, hardened concrete, fresh mortar after casting and hardened mortar. This system comprises an RF tag embedded in the cement water kneaded body, a reader or reader/writer capable of transmitting and receiving radio wave signals to and from the RF tags, and an estimation device that estimates the moisture content contained in the cement water kneaded body based on at least one index value of an intensity value of the radio wave signals received by the reader or reader/writer, and an upper limit threshold of a separation distance between the reader or reader/writer that can detect the reception of the radio wave signals and the cement water kneaded body.SELECTED DRAWING: Figure 2 【課題】硬化前及び硬化後のいずれの状態のセメント水混練体に対しても利用可能であり、且つ、簡易な方法でセメント水混練体に含まれる水分量を推定できるシステムを提供する。【解決手段】本発明に係るシステムは、打設後のフレッシュコンクリート、硬化コンクリート、打設後のフレッシュモルタル、又は硬化モルタルのいずれか１種に属するセメント水混練体に含まれる水分量の推定システムである。このシステムは、セメント水混練体に埋設されたＲＦタグと、ＲＦタグとの間で電波信号の送受信が可能なリーダ又はリーダライタと、リーダ又はリーダライタで受信した電波信号の強度値、若しくは電波信号の受信が検知できるリーダ又はリーダライタとセメント水混練体との離間距離の上限閾値の少なくとも一方の指標値に基づいてセメント水混練体に含まれる水分量を推定する推定装置とを備える。【選択図】図２