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A platform for research: civil engineering, architecture and urbanism
GROUT MATERIAL FOR SEWER PIPE RENOVATION METHOD AND SEWER PIPE RENOVATION METHOD USING SAME
PROBLEM TO BE SOLVED: To provide a grout material for a sewer pipe renovation method and the sewer pipe renovation method, comprising: installing a separate pipe in a deteriorated sewer pipe, filling mortar as a grout material in a gap generated between the two, and curing the mortar to obtain a composite pipe having strength comparable to that of a newly constructed pipe.SOLUTION: Provided is a grout material for a sewer pipe renovation method formed of a grout material composition comprising cement, lightweight aggregates, a mineral that imparts underwater inseparability, and an additive as essential components, where mortar obtained by adding a predetermined amount of water to a grout material composition followed by mixing has the following properties as measured by specific test methods: 1. a unit volume mass of 1.30 to 1.40 Kg/L; 2. a flow-down time of 5 to 7 seconds; 3. a pull-out flow value of 210 to 290 mm; 4. underwater inseparability: an amount of suspended substance of 0.80 g or less; 5. a unit volume mass difference of 0.05 Kg/L or less between an upper part unit volume mass and a lower part unit volume mass as obtained by a 4 m injection test; and 6. compression strength of 21 to 60 N/mm.SELECTED DRAWING: Figure 1
【課題】老朽化した下水管内部に別途の管を設置し、両者の間に生じる隙間にグラウト材のモルタルを均一に充填し、硬化して、新設管に匹敵する強度の複合管が得る下水管更生工法用グラウト材及びその下水管更生工法の提供。【解決手段】セメント、軽量骨材、水中不分離性付与鉱物及び混和材を必須成分とする粉粒体からなるグラウト材組成物から成る下水管更生工法用グラウト材で、グラウト材組成物に所定量の水を添加・混合したモルタルが特定の試験法で測定した下記の性状を備えている下水管更生工法用グラウト材。１．単位容積質量が１．３０〜１．４０Ｋｇ／Ｌ、２．流下時間が５〜７秒、３．引抜きフロー値が２１０〜２９０ｍｍ、４．水中不分離性：懸濁物質量が０．８０ｇ以下、５．４ｍ注入試験で得られる上部単位容積質量と下部単位容積質量の単位容積質量差が０．０５Ｋｇ／Ｌ以下、６．圧縮強度が２１〜６０Ｎ／ｍｍ２。【選択図】図１
GROUT MATERIAL FOR SEWER PIPE RENOVATION METHOD AND SEWER PIPE RENOVATION METHOD USING SAME
PROBLEM TO BE SOLVED: To provide a grout material for a sewer pipe renovation method and the sewer pipe renovation method, comprising: installing a separate pipe in a deteriorated sewer pipe, filling mortar as a grout material in a gap generated between the two, and curing the mortar to obtain a composite pipe having strength comparable to that of a newly constructed pipe.SOLUTION: Provided is a grout material for a sewer pipe renovation method formed of a grout material composition comprising cement, lightweight aggregates, a mineral that imparts underwater inseparability, and an additive as essential components, where mortar obtained by adding a predetermined amount of water to a grout material composition followed by mixing has the following properties as measured by specific test methods: 1. a unit volume mass of 1.30 to 1.40 Kg/L; 2. a flow-down time of 5 to 7 seconds; 3. a pull-out flow value of 210 to 290 mm; 4. underwater inseparability: an amount of suspended substance of 0.80 g or less; 5. a unit volume mass difference of 0.05 Kg/L or less between an upper part unit volume mass and a lower part unit volume mass as obtained by a 4 m injection test; and 6. compression strength of 21 to 60 N/mm.SELECTED DRAWING: Figure 1
【課題】老朽化した下水管内部に別途の管を設置し、両者の間に生じる隙間にグラウト材のモルタルを均一に充填し、硬化して、新設管に匹敵する強度の複合管が得る下水管更生工法用グラウト材及びその下水管更生工法の提供。【解決手段】セメント、軽量骨材、水中不分離性付与鉱物及び混和材を必須成分とする粉粒体からなるグラウト材組成物から成る下水管更生工法用グラウト材で、グラウト材組成物に所定量の水を添加・混合したモルタルが特定の試験法で測定した下記の性状を備えている下水管更生工法用グラウト材。１．単位容積質量が１．３０〜１．４０Ｋｇ／Ｌ、２．流下時間が５〜７秒、３．引抜きフロー値が２１０〜２９０ｍｍ、４．水中不分離性：懸濁物質量が０．８０ｇ以下、５．４ｍ注入試験で得られる上部単位容積質量と下部単位容積質量の単位容積質量差が０．０５Ｋｇ／Ｌ以下、６．圧縮強度が２１〜６０Ｎ／ｍｍ２。【選択図】図１
GROUT MATERIAL FOR SEWER PIPE RENOVATION METHOD AND SEWER PIPE RENOVATION METHOD USING SAME
下水管更生工法用グラウト材およびそれを用いた下水管更生工法
SATO AKIRA (author) / TASHIRO ISAO (author) / MAKI KOJI (author) / HASEGAWA HIROAKI (author)
2017-10-05
Patent
Electronic Resource
Japanese
GROUT MATERIAL FOR SEWER PIPE RENOVATION METHOD AND SEWER PIPE RENOVATION METHOD USING SAME
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