A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BACKFILL MATERIAL, BACKFILL METHOD, AND BACKFILL MATERIAL MANUFACTURING METHOD
To provide a backfill material having excellent ground strength and abrasion resistance, and being lighter and more water-retentive than conventional natural sand and recycled crushed stone (RC40).SOLUTION: A backfill material of the present invention includes a clay tile crushed material 10 comprising a first clay tile crushed material 10a having a particle size Da in a range from a maximum particle size Dmax to the maximum particle size Dmax×0.41 and a second clay tile crushed material 10b having a particle diameter Db in a range less than the maximum particle diameter Dmax0.41, where the maximum particle size of the clay tile crushed material 10, in which clay tile is crushed, is Dmax. The second clay tile crushed material 10b is set to 21 wt.% or more based on the total weight of the first clay tile crushed material 10a and the second clay tile crushed material 10b.SELECTED DRAWING: Figure 1
【課題】地盤強度や耐摩耗性に優れ、従来一般的に用いられている山砂や再生砕石（ＲＣ４０）に比べて軽量で保水性を備えた埋め戻し材を提供すること。【解決手段】本発明の埋め戻し材は、粘土瓦を破砕した粘土瓦破砕材１０の最大粒径をＤｍａｘとしたとき、粘土瓦破砕材１０を、最大粒径Ｄｍａｘから最大粒径Ｄｍａｘ×０．４１までの範囲を粒径Ｄａとする第１粘土瓦破砕材１０ａと、最大粒径Ｄｍａｘ０．４１未満の範囲を粒径Ｄｂとする第２粘土瓦破砕材１０ｂとで構成し、第１粘土瓦破砕材１０ａと第２粘土瓦破砕材１０ｂとの総重量に対して、第２粘土瓦破砕材１０ｂを２１重量％以上とすることを特徴とする。【選択図】 図１
BACKFILL MATERIAL, BACKFILL METHOD, AND BACKFILL MATERIAL MANUFACTURING METHOD
To provide a backfill material having excellent ground strength and abrasion resistance, and being lighter and more water-retentive than conventional natural sand and recycled crushed stone (RC40).SOLUTION: A backfill material of the present invention includes a clay tile crushed material 10 comprising a first clay tile crushed material 10a having a particle size Da in a range from a maximum particle size Dmax to the maximum particle size Dmax×0.41 and a second clay tile crushed material 10b having a particle diameter Db in a range less than the maximum particle diameter Dmax0.41, where the maximum particle size of the clay tile crushed material 10, in which clay tile is crushed, is Dmax. The second clay tile crushed material 10b is set to 21 wt.% or more based on the total weight of the first clay tile crushed material 10a and the second clay tile crushed material 10b.SELECTED DRAWING: Figure 1
【課題】地盤強度や耐摩耗性に優れ、従来一般的に用いられている山砂や再生砕石（ＲＣ４０）に比べて軽量で保水性を備えた埋め戻し材を提供すること。【解決手段】本発明の埋め戻し材は、粘土瓦を破砕した粘土瓦破砕材１０の最大粒径をＤｍａｘとしたとき、粘土瓦破砕材１０を、最大粒径Ｄｍａｘから最大粒径Ｄｍａｘ×０．４１までの範囲を粒径Ｄａとする第１粘土瓦破砕材１０ａと、最大粒径Ｄｍａｘ０．４１未満の範囲を粒径Ｄｂとする第２粘土瓦破砕材１０ｂとで構成し、第１粘土瓦破砕材１０ａと第２粘土瓦破砕材１０ｂとの総重量に対して、第２粘土瓦破砕材１０ｂを２１重量％以上とすることを特徴とする。【選択図】 図１
BACKFILL MATERIAL, BACKFILL METHOD, AND BACKFILL MATERIAL MANUFACTURING METHOD
埋め戻し材、埋め戻し方法、及び埋め戻し材の製造方法
OGURI KAZUHIKO (author) / MATSUZAWA TAKAHIRO (author) / OIWA TAKAYUKI (author) / SUGAWARA NAOKI (author)
2020-01-16
Patent
Electronic Resource
Japanese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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