A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UNDERGROUND IMPERVIOUS WALL CONSTRUCTION MATERIAL
PROBLEM TO BE SOLVED: To provide an underground impervious wall construction material suitable for constructing an underground impervious wall for confining a contaminated material by forming an excavation groove so that the groove surrounds a contaminated ground and charging the groove by pouring soil cement into the groove.SOLUTION: An underground impervious wall construction material used for constructing an underground impervious wall 5 for confining a contaminated material by forming an excavation groove 3 so that the groove surrounds a contaminated ground 1 and charging the groove 3 by pouring soil cement 4 into the groove 3 is made of a stirred mixture of cement, sand, bentonite, a plasticizer, and water. Mixing weight ratios between the cement, sand, and bentonite are within ranges of 10 to 16 parts by weight of the sand and 0.2 to 1 part by weight of the bentonite relative to 1 part by weight of the cement. The soil cement has a water permeability coefficient after hardening equal to or smaller than 1×10cm/s, and a flow value after 4 hours after kneading and mixing equal to or larger than 160 mm.
【課題】汚染地盤を囲むように掘削溝を形成し、この掘削溝内にソイルセメントを打設、充填して汚染物質の封じ込めを行う地中遮水壁を構築するのに適した地中遮水壁構築材料を提供する。【解決手段】汚染地盤１を囲むように掘削溝３を形成し、この掘削溝３内にソイルセメント４を打設、充填して汚染物質の封じ込めを行う地中遮水壁５を構築するために用いられる地中遮水壁構築材料であって、セメント、砂、ベントナイト、流動化剤及び水を撹拌混合したものからなり、セメント、砂及びベントナイトの配合重量比が、セメント１重量部に対して、砂１０〜１６重量部、ベントナイト０．２〜１重量部の範囲であり、硬化後のソイルセメントの透水係数が１?１０−７ｃｍ／ｓ以下、混練後４時間経過後のフロー値が１６０ｍｍ以上である。【選択図】図１
UNDERGROUND IMPERVIOUS WALL CONSTRUCTION MATERIAL
PROBLEM TO BE SOLVED: To provide an underground impervious wall construction material suitable for constructing an underground impervious wall for confining a contaminated material by forming an excavation groove so that the groove surrounds a contaminated ground and charging the groove by pouring soil cement into the groove.SOLUTION: An underground impervious wall construction material used for constructing an underground impervious wall 5 for confining a contaminated material by forming an excavation groove 3 so that the groove surrounds a contaminated ground 1 and charging the groove 3 by pouring soil cement 4 into the groove 3 is made of a stirred mixture of cement, sand, bentonite, a plasticizer, and water. Mixing weight ratios between the cement, sand, and bentonite are within ranges of 10 to 16 parts by weight of the sand and 0.2 to 1 part by weight of the bentonite relative to 1 part by weight of the cement. The soil cement has a water permeability coefficient after hardening equal to or smaller than 1×10cm/s, and a flow value after 4 hours after kneading and mixing equal to or larger than 160 mm.
【課題】汚染地盤を囲むように掘削溝を形成し、この掘削溝内にソイルセメントを打設、充填して汚染物質の封じ込めを行う地中遮水壁を構築するのに適した地中遮水壁構築材料を提供する。【解決手段】汚染地盤１を囲むように掘削溝３を形成し、この掘削溝３内にソイルセメント４を打設、充填して汚染物質の封じ込めを行う地中遮水壁５を構築するために用いられる地中遮水壁構築材料であって、セメント、砂、ベントナイト、流動化剤及び水を撹拌混合したものからなり、セメント、砂及びベントナイトの配合重量比が、セメント１重量部に対して、砂１０〜１６重量部、ベントナイト０．２〜１重量部の範囲であり、硬化後のソイルセメントの透水係数が１?１０−７ｃｍ／ｓ以下、混練後４時間経過後のフロー値が１６０ｍｍ以上である。【選択図】図１
UNDERGROUND IMPERVIOUS WALL CONSTRUCTION MATERIAL
地中遮水壁構築材料
OYAMA SUSUMU (author)
2015-10-01
Patent
Electronic Resource
Japanese
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