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DRY SHRINKAGE REDUCTION METHOD FOR CEMENTITIOUS HARDENED BODY
PROBLEM TO BE SOLVED: To provide a cost- and time-saving, economical and efficient dry shrinkage reduction method for cementitious hardened body.SOLUTION: The dry shrinkage reduction method involves applying or spraying a urea-containing solution to a cementitious hardened body such as a concrete and a cement mortar or immersing the cementitious hardened body in a urea-containing solution for a predetermined period of time. The urea-containing solution can be a solution of urea simply dissolved in water. Moreover, a liquid for dissolving urea is not limited as long as it does not deteriorate the dry shrinkage reduction effect of urea, and a solution which has dry shrinkage reduction effect by itself, with urea being dissolved in the solution, can also be used.SELECTED DRAWING: Figure 2
【課題】コストや手間のかからない経済的かつ効率的なセメント系硬化物の乾燥収縮低減方法の提供。【解決手段】コンクリートやモルタルなどのセメント系硬化物に尿素を含有する溶液を、セメント系硬化物に塗布したり、吹き付けたり、あるいは尿素を含有する溶液に一定時間浸漬させるセメント系硬化物の乾燥収縮低減方法。尿素を含有する溶液は、尿素を単に水に溶解させた溶液でよい。又、尿素を溶解させる液体は、尿素による乾燥収縮低減効果を損なわないものであれば、特に限定されず、それ自体が乾燥収縮低減効果を有する溶液を用い、その溶液に尿素を溶解させたものを使用することもできる。【選択図】図２
DRY SHRINKAGE REDUCTION METHOD FOR CEMENTITIOUS HARDENED BODY
PROBLEM TO BE SOLVED: To provide a cost- and time-saving, economical and efficient dry shrinkage reduction method for cementitious hardened body.SOLUTION: The dry shrinkage reduction method involves applying or spraying a urea-containing solution to a cementitious hardened body such as a concrete and a cement mortar or immersing the cementitious hardened body in a urea-containing solution for a predetermined period of time. The urea-containing solution can be a solution of urea simply dissolved in water. Moreover, a liquid for dissolving urea is not limited as long as it does not deteriorate the dry shrinkage reduction effect of urea, and a solution which has dry shrinkage reduction effect by itself, with urea being dissolved in the solution, can also be used.SELECTED DRAWING: Figure 2
【課題】コストや手間のかからない経済的かつ効率的なセメント系硬化物の乾燥収縮低減方法の提供。【解決手段】コンクリートやモルタルなどのセメント系硬化物に尿素を含有する溶液を、セメント系硬化物に塗布したり、吹き付けたり、あるいは尿素を含有する溶液に一定時間浸漬させるセメント系硬化物の乾燥収縮低減方法。尿素を含有する溶液は、尿素を単に水に溶解させた溶液でよい。又、尿素を溶解させる液体は、尿素による乾燥収縮低減効果を損なわないものであれば、特に限定されず、それ自体が乾燥収縮低減効果を有する溶液を用い、その溶液に尿素を溶解させたものを使用することもできる。【選択図】図２
DRY SHRINKAGE REDUCTION METHOD FOR CEMENTITIOUS HARDENED BODY
セメント系硬化物の乾燥収縮低減方法
FUJIWARA HIROMI (author) / TAKEMOTO SHINICHI (author) / SASAKI YOSHIKATSU (author)
2018-04-05
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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