Curable water-swelling waterstop material, waterstop steel sheet pile, waterstop steel sheet pile production method, and water-stopping method
A curable water-swelling water stop material including: 100 parts by mass of a resin component which includes 40 to 100 parts by mass of a curable resin having a hydrolysable alkoxysilyl group and 0 to 60 parts by mass of a polyether polyol; 0.3 to 25 parts by mass of an aminosilane coupling agent; 20 to 250 parts by mass of a water-absorbent resin; and 0 to 160 parts by mass of an extender pigment, in which the hydrolysable alkoxysilyl group having a structure represented by Formula (1) —X—CH 2 —SiR 1 Y (OR 2 ) 3-Y , in which X is a bonding functional group having a heteroatom with an unshared electron pair and bonding to a methylene group bonding to a silicon atom of a hydrolysable silicon group, R 1 and R 2 are C 1 -C 3 alkyl groups respectively, and Y is 0, 1 or 2.
1. A curable water-swelling water stop material comprising:
100 parts by mass of a resin component which includes
40 to 100 parts by mass of a curable resin (A) having a hydrolysable alkoxysilyl group and
0 to 60 parts by mass of a polyether polyol(B);
0.3 to 25 parts by mass of an aminosilane coupling agent (C);
20 to 250 parts by mass of a water-absorbent resin (D); and
0 to 160 parts by mass of an extender pigment (E),
wherein the hydrolysable alkoxysilyl group is represented by Formula (1)
—X—CH 2 —SiR 1 Y (OR 2 ) 3-Y Formula (1)
wherein X is a bonding functional group having a heteroatom with an unshared electron pair and bonding to a methylene group bonding to a silicon atom of a hydrolysable silicon group, R 1 and R 2 are C 1 -C 3 alkyl groups respectively, and Y is 0, 1 or 2, and
the aminosilane coupling agent (C) is 3-aminopropyltrimethoxysilane.
2. The curable water-swelling water stop material according to claim 1 wherein the water-absorbent resin (D) is at least one selected from the group consisting of a polyethylene oxide resin, a carboxymethyl cellulose alkali metal salt and a polyacrylic acid alkali metal salt.
3. The curable water-swelling water stop material according to claim 1 wherein the extender pigment (E) is at least one selected from the group consisting of bentonite, talc, calcium carbonatem and silica.
4. A water stop steel sheet pile comprising
a coating film located on a joint portion of a steel sheet pile,
wherein the coating film includes the curable water-swelling water stop material according to claim 1 .
5. A method of manufacturing a water-swelling steel sheet pile comprising:
a coating step of coating the curable water-swelling water stop material according to claim 1 onto a joint portion of a steel sheet pile; and
a coating film forming step of curing the curable water-swelling water stop material to form a coating film.
6. A method of stopping water comprising:
a driving/pressing-in step of driving or pressing at least a part of a water stop steel sheet pile into a ground while the curable water-swelling water stop material according to claim 1 is continuously coated onto a joint portion of the steel sheet pile; and
a curing step of curing the curable water-swelling water stop material to stop water.
7. The curable water-swelling water stop material according to claim 2 wherein the extender pigment (E) is at leat one selected from the group consisting of bentonite, talc, calcium carbonate, and silica.
8. A water stop steel sheet pile comprising
a coating film located on a joint portion of a steel sheet pile,
wherein the coating film includes the curable water-swelling water stop material according to claim 2 .
9. A water stop steel sheet pile comprising
a coating film located on a joint portion of a steel sheet pile,
wherein the coating film includes the curable water-swelling water stop material according to claim 3 .
10. A water stop steel sheet pile comprising
a coating film located on a joint portion of a steel sheet pile,
wherein the coating film includes the curable water-swelling water stop material according to claim 7 .
11. A method of manufacturing a water-swelling steel sheet pile comprising:
a coating step of coating the curable water-swelling water stop material according to claim 2 onto a joint portion of a steel sheet pile; and
a coating film forming step of curing the curable water-swelling water stop material to form a coating film.
12. A method of manufacturing a water-swelling steel sheet pile comprising:
a coating step of coating the curable water-swelling water stop material according to claim 3 onto a joint portion of a steel sheet pile; and
a coating film forming step of curing the curable water-swelling water stop material to form a coating film.
13. A method of manufacturing a water-swelling steel sheet pile comprising:
a coating step of coating the curable water-swelling water stop material according to claim 7 onto a joint portion of a steel sheet pile; and
a coating film forming step of curing the curable water-swelling water stop material to form a coating film.
14. A method of stopping water comprising:
a driving/pressing-in step of driving or pressing at least a part of a water stop steel sheet pile into a ground while the curable water-swelling water stop material according to claim 2 is continuously coated onto a joint portion of the steel sheet pile; and
a curing step of curing the curable water-swelling water stop material to stop water.
15. A method of stopping water comprising:
a driving/pressing-in step of driving or pressing at least a part of a water stop steel sheet pile into a ground while the curable water-swelling water stop material according to claim 3 is continuously coated onto a joint portion of the steel sheet pile; and
a curing step of curing the curable water-swelling water stop material to stop water.
16. A method of stopping water comprising:
a driving/pressing-in step of driving or pressing at least a part of a water stop steel sheet pile into a ground while the curable water-swelling water stop material according to claim 7 is continuously coated onto a joint portion of the steel sheet pile; and
a curing step of curing the curable water-swelling water stop material to stop water.