A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MANUFACTURING METHOD OF BACKFILLING MATERIAL
PROBLEM TO BE SOLVED: To provide a manufacturing method of a backfilling material with a uniaxial compressive strength allowing reexcavation without liquefaction, using raw materials with stable characteristics for easy manufacturing.SOLUTION: A molten slag 10 of general waste and a recycled sand 11 including any one of a recycled concrete roadbed material passing through a sieve opening of 5 mm, a steel slag roadbed material passing through a sieve opening of 5 mm, and a ready-mixed concrete remnant are subjected to a mixing process ST1 for manufacturing a backfilling material 13. The mixing ratio is set such that the backfilling material has a uniaxial compressive strength of 100 kPa or more and 200 kPa or less at a material age of 28 days.SELECTED DRAWING: Figure 1
【課題】液状化せず再掘削が可能な一軸圧縮強度を有し、使用する原材料の性状が安定しており製造も容易な埋戻し材の製造方法を提供する。【解決手段】材齢２８日における埋戻し材の一軸圧縮強度が１００ｋＰａ以上２００ｋＰａ以下となるように設定した混合比で、５ｍｍふるい目を通過したコンクリート再生路盤材、５ｍｍふるい目を通過した鉄鋼スラグ路盤材、及び生コン残コンのいずれかからなる再生砂１１と一般廃棄物溶融スラグ１０とを混合処理ＳＴ１して埋戻し材１３を製造する。【選択図】図１
MANUFACTURING METHOD OF BACKFILLING MATERIAL
PROBLEM TO BE SOLVED: To provide a manufacturing method of a backfilling material with a uniaxial compressive strength allowing reexcavation without liquefaction, using raw materials with stable characteristics for easy manufacturing.SOLUTION: A molten slag 10 of general waste and a recycled sand 11 including any one of a recycled concrete roadbed material passing through a sieve opening of 5 mm, a steel slag roadbed material passing through a sieve opening of 5 mm, and a ready-mixed concrete remnant are subjected to a mixing process ST1 for manufacturing a backfilling material 13. The mixing ratio is set such that the backfilling material has a uniaxial compressive strength of 100 kPa or more and 200 kPa or less at a material age of 28 days.SELECTED DRAWING: Figure 1
【課題】液状化せず再掘削が可能な一軸圧縮強度を有し、使用する原材料の性状が安定しており製造も容易な埋戻し材の製造方法を提供する。【解決手段】材齢２８日における埋戻し材の一軸圧縮強度が１００ｋＰａ以上２００ｋＰａ以下となるように設定した混合比で、５ｍｍふるい目を通過したコンクリート再生路盤材、５ｍｍふるい目を通過した鉄鋼スラグ路盤材、及び生コン残コンのいずれかからなる再生砂１１と一般廃棄物溶融スラグ１０とを混合処理ＳＴ１して埋戻し材１３を製造する。【選択図】図１
MANUFACTURING METHOD OF BACKFILLING MATERIAL
埋戻し材の製造方法
MIYATANI TOSHIHIRO (author) / SEKI YUJI (author)
2016-12-22
Patent
Electronic Resource
Japanese
BACKFILLING MATERIAL, MANUFACTURING METHOD OF THE SAME, AND BACKFILLING METHOD
| European Patent Office | 2023
| European Patent Office | 2021