ᮾᛴᘓタᢏ⾡◊✲ᡤሗ No.39
東急建設技術研究所報No.39

U.D.C 691.32
U.D.C 691.32
ప⢓ᛶᆺቑ⢓๣⣔㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢᐇ⏝໬࡟㛵ࡍࡿ◊✲

低粘性型増粘剤系高流動コンクリートの実用化に関する研究ྂᕝ 㞝ኴ㸨 ኱ᒸ ╩ᑦ㸨＊㸨古川 బ⸨雄太＊Ⰻ௓大岡督尚 ୰⏣
ᐶ஧㸨

佐藤良介＊

中田寛二＊

⣙㸸 ᮏ◊✲ࡣ㸪ቑ⢓๣୍ᾮᆺࡢ㧗ᛶ⬟ AE ῶỈ๣ࢆ౑⏝ࡋࡓ㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢᐇ⏝໬ࡢࡓࡵ࡟㸪ᐇ㦂ⓗ࡟᳨ウࢆ⾜ࡗࡓࡶせࡢ࡛࠶ࡿࠋࡑࡢ⤖ᯝ㸪 ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞ࡣỈࢭ࣓ࣥࢺẚ 50%௨ୗࡢ⠊ᅖ࡛ࡣ 0.1cm3/cm2 ௨ୗ࡛࠶ࡿࡓࡵ㸪CFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺࡢ┠ᶆ್ࢆ‶㊊ࡍࡿࡶࡢ࡛࠶ࡗࡓࠋࡲࡓ㸪ỿ㝆㔞ࡶ 2mm ௨ୗ࡛࠶ࡾ㸪CFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺࡢ┠ᶆ್ࢆ‶㊊ࡍࡿ⤖ᯝ࡛࠶ࡗࡓࠋ࣏ࣥࣉᅽ㏦ᛶࡣ㸪ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂࡟ࡼࡾホ౯ࢆヨࡳ㸪ᅽ㏦ࡀⰋዲ࡞⠊ᅖ࡟཰ࡲࡿ⬺Ỉ㔞࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋຊᏛᛶ≧࡟㛵ࡋ࡚ࡣ㸪ᅽ⦰ᙉᗘ࡜㟼ᙎᛶಀᩘࡢ㛵ಀࡀ㸪୍⯡ⓗ࡞ࢥࣥࢡ࣮ࣜࢺ࡜ྠ➼࡛࠶ࡿࡇ࡜ࢆ☜ㄆࡋࡓࠋ௨ୖࡼࡾ㸪ቑ⢓๣୍ᾮᆺࡢ㧗ᛶ⬟ AE ῶỈ๣ࢆ౑⏝ࡋࡓ㧗ὶືࢥࣥࢡ࣮ࣜࢺࡣ㸪ᚑ᮶ࡢ㧗ὶືࢥࣥࢡ࣮ࣜࢺ࡜ྠ➼ࡢᛶ⬟ࢆ᭷ࡍࡿ࡜⪃࠼ࡽࢀࡿࠋ࣮࣮࢟࣡ࢻ 㸸 㧗ὶືࢥࣥࢡ࣮ࣜࢺ㸪ቑ⢓๣㸪ప⢓ᛶ㸪CFT 㐀┠ḟ㸸 1. ࡣࡌࡵ࡟

3. ヨ㦂⤖ᯝ 2. ◊✲ィ⏬

4. ࡲ࡜ࡵ ࡣࡌࡵ࡟ࡋ࠿ࡋ࡞ࡀࡽ㸪ࡇࡢ᪂つ࡞ቑ⢓๣⣔㧗ὶືࢥࣥࢡ࣮ࣜ㏆ᖺ㸪㐣ᐦ㓄➽ࡸព໶ⓗ࡟」㞧࡞㒊ᮦ࡟ᑐࡋ࡚㸪඘ሸࢺࡢ᳨ウ౛ࡣᑡ࡞ࡃ㸪୙᫂☜࡞Ⅼࡀከ࠸ࠋࡑࡢࡓࡵ㸪ᮏᛶࡢྥୖࡸ᪋ᕤࡢ┬ຊ໬ࢆ┠ⓗ࡟㸪㧗ὶືࢥࣥࢡ࣮ࣜࢺ

◊✲ࡣ᪂つ࡞ቑ⢓๣⣔㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢᐇ⏝໬ࢆ┠ࡢ㟂せࡀ㧗ࡲࡗ࡚࠸ࡿࠋࡲࡓ㸪௒ᚋࡢᘓタ⌧ሙ࡛ࡢ⇍⦎ⓗ࡟㸪ᐇ㦂ⓗ࡟᳨ウࢆ⾜ࡗࡓࡶࡢ࡛࠶ࡿࠋ

ᕤࡢ୙㊊ࡸ⅏ᐖ᫬ࡢ㎿㏿᪋ᕤ࡟ᑐᛂࡍࡿࡓࡵ࡟㸪㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢ㟂せࡣࡉࡽ࡟㧗ࡲࡿ࡜⪃࠼ࡽࢀ࡚࠸ࡿ 1)ࠋ

 ◊✲ィ⏬ࡇࢀࡲ࡛ࡢ㧗ὶືࢥࣥࢡ࣮ࣜࢺࡣ㸪ᘓ⠏ศ㔝࡟࠾࠸࡚ヨ㦂࡟⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺࡣ㸪┠ᶆ✵Ẽ㔞ࢆ 4.5%࡜

ࡣ㸪ᮦᩱศ㞳᢬ᢠᛶࡢྥୖࢆ┠ⓗ࡟㸪⢊య㔞ࢆከࡃࡋࡓ

ࡋࡓㄪྜ(௨ୗ㸪୍⯡⏝࡜␎グ)࡛ࡣ㸪ᬑ㏻࣏ࣝࢺࣛࣥࢻ

⢊య⣔㧗ὶືࢥࣥࢡ࣮ࣜࢺࡀከࡃ⏝࠸ࡽࢀ࡚ࡁࡓࠋࡑࡢ

ࢭ࣓ࣥࢺ(N)ࢆ⏝࠸㸪ㄪྜ⟶⌮ᙉᗘ 27N/mm2㸪36 N/mm2୍᪉࡛㸪⢊య㔞ࢆቑࡸࡍᚲせࡢ࡞࠸ቑ⢓๣ࢆ⏝࠸ࡓቑ⢓࠾ࡼࡧ 45 N/mm2 (௨ୗ㸪27N㸪36N㸪45N ࡜␎グ)࡟┦ᙜ๣⣔㧗ὶືࢥࣥࢡ࣮ࣜࢺࡣ㸪ቑ⢓๣ࡢู㏵ᢞධࡸ࣑࢟ࢧ

ࡍࡿỈࢭ࣓ࣥࢺẚࡢ 3 Ỉ‽࡜ࡋ㸪┠ᶆ✵Ẽ㔞ࢆ 3.0%࡜

ࡢὙί࡞࡝ࡀᚲせ࡛࠶ࡿࡇ࡜࠿ࡽ㸪୍⯡ⓗ࡞ᬑཬ࡟⮳ࡗࡋࡓㄪྜ(௨ୗ㸪CFT ⏝࡜␎グ)࡛ࡣ㸪ᬑ㏻࣏ࣝࢺࣛࣥࢻ

࡚࠸࡞࠸ࡢࡀ⌧≧࡛࠶ࡿࠋࡋ࠿ࡋ࡞ࡀࡽ㸪㏆ᖺ㸪㧗ᛶ⬟ࢭ࣓ࣥࢺ(N)࠾ࡼࡧ୰ᗤ⇕࣏ࣝࢺࣛࣥࢻࢭ࣓ࣥࢺ(M)ࢆ⏝AE ῶỈ๣࡜ቑ⢓๣ࢆ୍ᾮ໬ࡋ㸪㐣ᗘ࡞⢓ᛶࢆᣢࡓ࡞࠸࠸ 㸪 Ỉ ࢭ ࣓ ࣥ ࢺ ẚ ࢆ 50% 㸪 45% ࠾ ࡼ ࡧ 35%( ௨ ୗ 㸪໬Ꮫΰ࿴๣ࡀ㛤Ⓨࡉࢀࡓࡇ࡜࡟ࡼࡾ㸪ቑ⢓๣⣔㧗ὶືࢥ

WC50N(M)㸪WC 45N(M)㸪WC 35N(M))࡜␎グ)ࡢ 6 Ỉ‽ࣥࢡ࣮ࣜࢺࡢㄢ㢟࡛࠶ࡿቑ⢓๣ࡢู㏵ᢞධࡸ࣑࢟ࢧࡢὙ

࡜ࡋࡓࠋ౑⏝ᮦᩱࢆ⾲ 1 ࡟㸪ࢥࣥࢡ࣮ࣜࢺࡢㄪྜ࠾ࡼࡧίࢆ୙せ࡜ࡍࡿ㸪᪂ࡋ࠸ࢱ࢖ࣉࡢቑ⢓๣⣔㧗ὶືࢥࣥࢡ

ࣇࣞࢵࢩࣗᛶ≧ࢆ⾲ 2 ࡟♧ࡍࠋ࡞࠾㸪┠ᶆࢫࣛࣥࣉࣇࣟ

2)࣮ࣜࢺࡢ〇㐀ࡀྍ⬟࡜࡞ࡗࡓ ࠋ࣮ࡣ㸪27N ࡣ 50cm ࡜ࡋ㸪ࡑࡢ௚ࡣ 60cm ࡜ࡋࡓࠋ⾲  ౑⏝ᮦᩱᮦᩱࢭ࣓ࣥࢺ (C)⣽㦵ᮦ (S)✀㢮≀ᛶ㸪⏘ᆅ➼

ᬑ㏻࣏ࣝࢺࣛࣥࢻࢭ࣓ࣥࢺ (N)୰ᗤ⇕࣏ࣝࢺࣛࣥࢻࢭ࣓ࣥࢺ (M)S1㸸ᒣ◁ [80%]ᐦᗘ㸸3.16g/cm3㸪ẚ⾲㠃✚㸸3230cm3/g
ᐦᗘ㸸3.21g/cm3㸪ẚ⾲㠃✚㸸3670cm3/g
ᐦᗘ㸸2.64g/cm3㸪༓ⴥ┴ྩὠᕷ⢒㦵ᮦ (G)⦎ΰࡐỈ (W)ΰ࿴๣ (Ad)

S2㸸▼⅊ᒾ○◁ [20%]ᐦᗘ㸸2.65g/cm3㸪ᇸ⋢┴㣤⬟ᕷ

G1㸸◁ᒾ○▼ [50%]ᐦᗘ㸸2.66g/cm3㸪ᮾி㒔すከᦶ㒆G2㸸▼⅊ᒾ○▼ [50%]ᐦᗘ㸸2.70g/cm3㸪ᒣཱྀ┴⨾⚇ᕷୖỈ㐨Ỉ⚄ዉᕝ┴┦ᶍཎᕷ
࣏ࣜ࢝ࣝ࣎ࣥ㓟࢚࣮ࢸࣝ⣔໬ྜ≀࡜㧗ᛶ⬟ AE ῶỈ๣(ቑ⢓๣୍ᾮࢱ࢖ࣉ)ቑ⢓ᛶ㧗ศᏊ໬ྜ≀ࡢ」ྜయ
㸨1 㦵ᮦࡢᐦᗘࡣ⾲஝ᐦᗘ㸪[ ]ෆࡣΰྜ๭ྜ㸸㉁㔞ẚ*技術研究所
構工法グループᢏ⾡◊✲ᡤ
ᵓᕤἲࢢ࣮ࣝࣉ

31
31

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東急建設技術研究所報No.39

⾲  ࢥࣥࢡ࣮ࣜࢺࡢㄪྜ࠾ࡼࡧࣇࣞࢵࢩࣗᛶ≧༢఩㔞(kg/m3)

ࣇࣞࢵࢩࣗᛶ≧ࢫࣛࣥࣉ ✵Ẽ㔞
ᗘ
ࣇ࣮ࣟ
(%)
(Υ)
(cm)グྕ

┠ᶆࣇ࣮ࣟ(cm)┠ᶆ✵Ẽ㔞(%)

W/C(%)

s/a(%)

WCS

GAd

27N

50

4.5

59.3

52.4

174294

953

878

4.410

55.0

4.4

23.5

36N

60

4.5

47.1

50.0

174370

878

890

4.625

64.5

4.8

22.0

45N

60

4.5

39.0

47.4

174

447

801

903

5.364

61.0

5.1

22.0

WC50N

60

3.0

50.0

51.9

174348

940

884

6.438

56.5

2.5

24.0

WC45N

60

3.0

45.0

50.6

174

387

900

892

6.192

59.0

2.5

22.5

WC35N

60

3.0

35.0

46.9

174498

792

910

6.972

74.0

2.0

23.0

WC50M

60

3.0

50.0

52.0174348

945

884

5.916

62.5

2.9

23.0

WC45M

60

3.0

45.0

50.7

174

387

905

892

6.192

61.5

3.0

23.0

WC35M

60

3.0

35.0

47.1

174

498

798

910

6.972

71.5

3.8

23.0


a) 27N    b) 36N c) 45N

෗┿  ࢫࣛࣥࣉࣇ࣮ࣟヨ㦂࡟࠾ࡅࡿࢥࣥࢡ࣮ࣜࢺࡢ≧ែ෗┿ 1 ࡟ࢫࣛࣥࣉࣇ࣮ࣟヨ㦂࡟࠾ࡅࡿ㸪୍⯡⏝ㄪྜࡢ⾲  ヨ㦂㡯┠ࢥࣥࢡ࣮ࣜࢺࡢ≧ែࢆ♧ࡍࠋ෗┿ 1 ࡼࡾ㸪࠸ࡎࢀࡢࢥࣥヨ㦂㡯┠᪉ἲJIS A 1123
ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢ
ᩥ⊩ 3
JASS 5 T503-2009ỿ㝆㔞ࣇ࣮ࣟᅇ᚟ᛶ≧̿
JIS A 1108
ᅽ⦰ᙉᗘ
JIS A 1149㟼ᙎᛶಀᩘࢡ࣮ࣜࢺࡶ➃㒊ࡲ࡛⢒㦵ᮦࡀ⾜ࡁΏࡗ࡚࠾ࡾ㸪୰ኸ㒊࡟⢒㦵ᮦࡀ㐢ᅾࡍࡿࡇ࡜ࡶ࡞ࡃ㸪Ⰻዲ࡞≧ែ࡛࠶ࡿࡇ࡜ࡀ
ఛ࠼ࡿࠋࡲࡓ㸪36N ࠾ࡼࡧ 45N ࡢࢫࣛࣥࣉࣇ࣮ࣟ50cm฿㐩᫬㛫ࡣ㸪3 ⛊࠿ࡽ 4 ⛊⛬ᗘ㸪೵Ṇ᫬㛫ࡣ 30 ⛊࠿ࡽ
40 ⛊⛬ᗘ࡛࠶ࡾ㸪ᚑ᮶ࡢ㧗ὶືࢥࣥࢡ࣮ࣜࢺ࡟ẚ࡭࡚㸪ࢥࣥࢡ࣮ࣜࢺࡢὶືࡀ᪩ࡃ㸪⢓ᛶࡀప࠸ࡇ࡜ࡀᮏ㧗ὶື୍⯡⏝ CFT ⏝‫ۑ‬‫ۑ‬‫ۑ‬̿̿‫ۑ‬‫ۑ‬㸨1‫ۑ‬㸨2‫ۑ‬‫ۑ‬‫ۑ‬‫ۑ‬

㸨1 36N ࡢࡳᐇ᪋ 㸨2 WC45M ࡢࡳᐇ᪋ࢥࣥࢡ࣮ࣜࢺࡢ≉ᚩ࡛࠶ࡿࠋ ヨ㦂⤖ᯝヨ㦂㡯┠ࢆ⾲ 3 ࡟♧ࡍࠋࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂ࡣ㸪୍⯡ ࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂⏝࠾ࡼࡧ CFT ⏝ࡢㄪྜ࡛ᐇ᪋ࡋ㸪ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂ࡣᩥ⊩ 3)ࢆཧ⪃࡟ࡋ୍࡚⯡⏝ࡢ㓄ྜࡢࡳ࡛ᐇ᪋ࡋ

ᅗ 1 ࡟୍⯡⏝ࡢྛࢥࣥࢡ࣮ࣜࢺࡢࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂ࡓࠋỿ㝆㔞ヨ㦂ࡣ㸪CFT ⏝ࡢㄪྜ࡛ࡢࡳᐇ᪋ࡋ㸪┤ᚄ⤖ᯝ㸪ᅗ 2 ࡟ࡣ CFT ⏝ࡢྛࢥࣥࢡ࣮ࣜࢺࡢࣈ࣮ࣜࢹ࢕

15cm㸪㧗ࡉ 30cm ࡢ⡆᫆ᆺᯟ࡟ヨᩱࢆワࡵ㸪㠀᥋ゐᆺࡢࣥࢢヨ㦂⤖ᯝࢆ♧ࡍࠋᅗ 1 ࡟ࡼࡿ࡜㸪27N ࡀ᭱ࡶ኱ࡁ࠸࣮ࣞࢨ࣮ኚ఩ィࢆ⏝࠸࡚ୖ㒊ࡢỿ㝆㔞ࢆ ᐃࡋࡓࠋࣇࣟࣈ࣮ࣜࢹ࢕ࣥࢢ㔞࡛࠶ࡿࡀ㸪0.3cm3/cm2 ௨ୗ࡛࠶ࡾ㸪⪏࣮ᅇ᚟ᛶ≧ヨ㦂ࡣ㸪36N ࠾ࡼࡧ WC45M ࡟࠾࠸࡚ࡢࡳᐇஂᛶ≧࡟኱ࡁ࡞ᙳ㡪ࢆཬࡰࡍࡼ࠺࡞ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞࡛᪋ࡋ㸪⦎ୖࡾ࠿ࡽ 30 ศ㛫㝸࡛ࢫࣛࣥࣉࣇ࣮ࣟヨ㦂ࢆ⾜ࡣ࡞࠿ࡗࡓ 4)ࠋᅗ 2 ࠿ࡽࡣ㸪 CFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺ

࠸㸪ࢫࣛࣥࣉࣇ࣮ࣟࡀ 50cm ࢆୗᅇࡗࡓ᫬Ⅼ࡛㸪ቑ⢓๣ࡢ┠ᶆ್ 5)࡛࠶ࡿࣈ࣮ࣜࢹ࢕ࣥࢢ㔞 0.1cm3/cm2 ௨ୗࢆ‶ᡂศࢆྵࡲ࡞࠸୍⯡ⓗ࡞ὶື໬๣ࢆῧຍࡍࡿࡇ࡜࡟ࡼࡿ㊊ࡍࡿ⤖ᯝࢆㄞࡳྲྀࢀࡿࡀ㸪M ࢭ࣓ࣥࢺࢆ⏝࠸ࡓࢥࣥࣇ࣮ࣟᅇ᚟ᛶ≧ࡢ☜ㄆࢆ⾜ࡗࡓࠋ࡞࠾㸪ࣇ࣮ࣟᅇ᚟ᛶ≧ࢡ࣮ࣜࢺࡣ㸪ྠ୍Ỉࢭ࣓ࣥࢺẚࡢ N ࢭ࣓ࣥࢺࢆ⏝࠸ࡓࡢヨ㦂࡟⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺࡣ㸪௚ࡢヨ㦂࡜ࡣู࡟⦎ΰ

ࢥࣥࢡ࣮ࣜࢺࡼࡾࡶ኱ࡁ࠸್ࢆ♧ࡋ࡚࠾ࡾ㸪Ỉࢭ࣓ࣥࢺࡐࢆ⾜ࡗࡓヨᩱࢆ⏝࠸ࡓࠋᅽ⦰ᙉᗘ࠾ࡼࡧ㟼ᙎᛶಀᩘࡣ㸪ẚ 50%ࡢࡶࡢ࡛ࡣ 0.1cm3/cm2 ࡟㏆࠸್࡛࠶ࡿࡓࡵ㸪M

୍⯡⏝࠾ࡼࡧ CFT ⏝ࡢㄪྜ࡛ᐇ᪋ࡋ㸪ヨ㦂ᮦ㱋ࡣ 28 ᪥ࢭ࣓ࣥࢺࢆ⏝࠸ࡓ㧗࠸Ỉࢭ࣓ࣥࢺẚࡢࢥࣥࢡ࣮ࣜࢺࡣ␃

࡜ࡋࡓࠋពࡀᚲせ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ

32

東急建設技術研究所報No.39

ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞 FPFP

 ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂 ᅗ 3 ࡟ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂⤖ᯝࢆ♧ࡍࠋᅗ୰࡟ࡣ㸪ᩥ⊩ 3)࡟♧ࡉࢀ࡚࠸ࡿࠕᅽ㏦ᛶࡀⰋዲ࡜⪃࠼ࡽࢀࡿ⠊ᅖࠖࢆ♧ࡋ࡚࠸ࡿࠋᅗ 3 ࡼࡾ㸪ヨ㦂࡟⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺࡣ㸪ప⢓ᛶ࡛ࡣ࠶ࡿࡀቑ⢓๣ࢆ⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺ࡛࠶ࡿࡓࡵ࡟㸪ᚑ᮶ࡢቑ⢓๣ࡸᅽ㏦ຓ๣ࢆ⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺ࡜ྠᵝ 6)࡟㸪⬺Ỉ㔞ࡣᑠࡉࡃୗ㝈್ᐤࡾࡢ್ࢆ♧ࡍഴྥ࡛࠶ࡗࡓࠋࡋ࠿ࡋ࡞ࡀࡽ㸪࠸ࡎࢀࡢࢥࣥࢡ࣮ࣜࢺࡶࠕᅽ㏦ᛶࡀⰋዲ࡜⪃࠼ࡽࢀࡿ⠊ᅖࠖ࡟཰ࡲࡗ࡚࠾ࡾ㸪ࢥ

1

1

1ࣥࢡ࣮ࣜࢺ࣏ࣥࣉ࡟ࡼࡿᅽ㏦ࡣⰋዲ࡛࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋ⤒㐣᫬㛫 ศ ỿ㝆㔞ヨ㦂  ᅗ  ࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂⤖ᯝ(୍⯡⏝)ᅗ 4 ࡟ỿ㝆㔞ヨ㦂⤖ᯝࢆ♧ࡍࠋࡇࢀ࡟ࡼࡿ࡜㸪࠸ࡎࢀࣈ࣮ࣜࢹ࢕ࣥࢢ㔞 FPFP

ቑ኱ࡍࡿഴྥ࡛࠶ࡿࡀ㸪4 ᫬㛫௨㝆ࡣ⦆ࡸ࠿࡟࡞ࡿഴྥࡀㄆࡵࡽࢀࡓࠋࡲࡓ㸪 CFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺࡢ┠ᶆ್ 5)࡛࠶ࡿỿ㝆㔞 2mm ௨ୗࢆ‶㊊ࡍࡿ⤖ᯝ࡛࠶ࡗࡓࠋࡋ࠿ࡋ࡞ࡀࡽ㸪ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞࡜ྠᵝ࡟㸪M ࢭ࣓ࣥࢺࢆ⏝࠸ࡓࢥࣥࢡ࣮ࣜࢺࡣ N ࢭ࣓ࣥࢺࢆ⏝࠸ࡓࡶࡢࡼ
ࡾࡶ኱ࡁ࠸ỿ㝆㔞࡛࠶ࡾ㸪≉࡟Ỉࢭ࣓ࣥࢺẚ 50%ࡢࡶ
ࡢࡣ኱ࡁ࠸ỿ㝆㔞࡛࠶ࡿࡇ࡜࠿ࡽ㸪ࢲ࢖࢔ࣇ࣒ࣛୗ㒊࡟㧗࠸඘ሸᛶࡀせồࡉࢀࡿࡼ࠺࡞ሙྜࡣ㸪␃ពࡀᚲせ࡛࠶:&1:&0:&1:&0ࡢࢥࣥࢡ࣮ࣜࢺࡶ⤒㐣᫬㛫ࡀ 4 ᫬㛫⛬ᗘࡲ࡛ࡣỿ㝆㔞ࡀ:&1:&0ࡿ࡜⪃࠼ࡽࢀࡿࠋ⤒㐣᫬㛫 ศ ࣇ࣮ࣟᅇ᚟ᛶ≧ヨ㦂ᅗ  ࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂⤖ᯝ(CFT ⏝) ᅗ 5 ࡟ࣇ࣮ࣟᅇ᚟ᛶ≧ヨ㦂⤖ᯝࢆ♧ࡍࠋᮏヨ㦂࡛ࡣ㸪⦎ΰࡐ㔞ࡀᑡ࡞࠿ࡗࡓࡇ࡜ࡸྛ ᐃ᫬Ⅼࡲ࡛ࡢ㛫ࡣ᧠ᢾ111Ⰻዲ࡞⠊ ᅖࡣࡏࡎ࡟㟼⨨ࡋ࡚࠸ࡓࡓࡵ࡟㸪ࢫࣛࣥࣉࣇ࣮ࣟࡢపୗࡣ⬺Ỉ㔞 PO኱ࡁ࠸⤖ᯝ࡛࠶ࡗࡓࠋࡋ࠿ࡋ࡞ࡀࡽ㸪ࢫࣛࣥࣉࣇ࣮ࣟࡀ
50cm ࢆୗᅇࡗࡓ᫬Ⅼ࡛㸪36N ࠾ࡼࡧ WC45M ࡢ࠸ࡎࢀࡶ㸪ቑ⢓๣ᡂศࢆྵࡲ࡞࠸୍⯡ⓗ࡞ὶື໬๣ࢆࢭ࣓ࣥࢺ
㔞ࡢ 0.2vol%ῧຍࡍࡿࡇ࡜࡛㸪ศ㞳ࡍࡿࡇ࡜࡞ࡃࢫࣛࣥୖ㝈್ୗ㝈್ࣉࣇ࣮ࣟࢆチᐜ್࡟ᅇ᚟ࡋᚓࡿ⤖ᯝࡀᚓࡽࢀࡓࠋࡇࢀ࡟ࡼࡾ㸪᭱ึࡢ⦎ΰࡐ᫬࡟ῧຍࡋࡓቑ⢓๣࡟ࡼࡿᮦᩱศ㞳᢬ᢠᛶࡣ㸪పୗࡋ࡚࠸࡞࠸ࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡼࡗ࡚㸪ࢫࣛࣥࣉࣇ࣮ࣟࢆチᐜ್࡟ᅇ᚟ࡉࡏࡿሙྜ㸪᪂ࡓ࡟ቑ⢓๣ᡂศࢆῧຍࡍࡿᚲせࡣ࡞࠸࡜⪃࠼ࡽࢀࡿࠋ⤒㐣᫬㛫 ⛊ ᅗ  ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂⤖ᯝ

 ᅽ⦰ᙉᗘ࠾ࡼࡧ㟼ᙎᛶಀᩘヨ㦂:&1:&0ᅗ 6 ࡟ྛࢥࣥࢡ࣮ࣜࢺࡢᅽ⦰ᙉᗘ࡜㟼ᙎᛶಀᩘࡢ㛵ಀ:&1:&0:&1:&0ỿ㝆㔞 PPࢆ♧ࡍࠋᅗ୰ࡢᐇ⥺ࡣ㸪RC つ‽ 7)࡟♧ࡉࢀ࡚࠸ࡿ㟼ᙎᛶಀᩘࡢ⟬ᐃ್(k1=1.1,Ț=2.35t/m3)ࢆ♧ࡋ࡚࠸ࡿࠋᅗ 6࠿ࡽࡣ㸪ᅽ⦰ᙉᗘࡀࢭ࣓ࣥࢺ✀㢮࠾ࡼࡧỈࢭ࣓ࣥࢺẚ࡟ᛂࡌ࡚㸪୍⯡ⓗ࡞ࢥࣥࢡ࣮ࣜࢺ࡜ྠ➼ࡢ್ࢆ᭷ࡋ࡚࠸ࡿ
ࡇ࡜ࡀㄞࡳྲྀࢀࡿࠋࡲࡓ㸪㟼ᙎᛶಀᩘࡣ RC つ‽ᘧ࡟



k1=1.1 ࢆ௦ධࡋࡓ⟬ᐃ್࡜࡯ࡰ୍⮴ࡋ࡚࠸ࡿࡀ㸪ᮏ◊✲ࡢࢥࣥࢡ࣮ࣜࢺࡣ㸪⢒㦵ᮦ࡟▼⅊ᒾࢆ 50%౑⏝ࡋ࡚࠸ࡿࡇ࡜࠿ࡽᩚྜᛶࡀ࠶ࡿ࡜⪃࠼ࡽࢀࡿࠋࡑࡢࡓࡵ㸪ᮏ◊✲ࡢ㧗ὶືࢥࣥࢡ࣮ࣜࢺࡣ㸪୍⯡ⓗ࡞ࢥࣥࢡ࣮ࣜࢺ࡜ྠ➼ࡢຊᏛᛶ≧ࢆ᭷ࡋ࡚࠸ࡿ࡜⪃࠼ࡽࢀࡿࠋ        ⤒㐣᫬㛫 ᫬㛫  ᅗ  ỿ㝆㔞ヨ㦂⤖ᯝ

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東急建設技術研究所報No.39

1:&0ὶື໬๣ῧຍ
C0.2%

㟼ᙎᛶಀᩘ N1PPࢫࣛࣥࣉࣇ࣮ࣟ FP1:&1:&01:&1:&01:&1:&0













⤒㐣᫬㛫 ศᅗ  ࣇ࣮ࣟᅇ᚟ᛶ≧ヨ㦂⤖ᯝ











1PP

ᅽ⦰ᙉᗘ
 ᅗ  ᅽ⦰ᙉᗘ࡜㟼ᙎᛶಀᩘࡢ㛵ಀ ࡲ࡜ࡵࡋࡓࡶࡢࡢ㸪ᅽ㏦ᛶࡀⰋዲ࡜⪃࠼ࡽࢀࡿ⠊ᅖ࡛࠶ࡗቑ⢓๣ࢆ୍ᾮ໬ࡋࡓ㧗ᛶ⬟ AE ῶỈ๣ࢆ౑⏝ࡋࡓ㧗ὶࡓࠋືࢥࣥࢡ࣮ࣜࢺࡢㅖᛶ≧࡟ࡘ࠸᳨࡚ウࢆ⾜ࡗࡓ⤖ᯝ㸪௨ 4) ỿ㝆㔞ࡣ㸪࠸ࡎࢀࡢㄪྜ࡛ࡶ 2mm ௨ୗ࡛࠶ࡾ㸪ୗࡢ⤖ㄽࢆᚓࡓࠋCFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺࡢ┠ᶆ್ࢆ‶㊊ࡍࡿ್࡛ 1) ࣈ࣮ࣜࢹ࢕ࣥࢢ㔞ࡣ㸪୍⯡ⓗ࡞ࢥࣥࢡ࣮ࣜࢺ࡜ྠ➼࠶ࡗࡓࠋ࡛࠶ࡾ㸪⪏ஂᛶ࡟኱ࡁ࡞ᙳ㡪ࢆཬࡰࡍࡼ࠺࡞್࡛ࡣ 5) ࢫࣛࣥࣉࣇ࣮ࣟࡀチᐜ್ࢆୗᅇࡗࡓሙྜ㸪ቑ⢓๣ᡂ࡞࠿ࡗࡓࠋศࢆྵࡲ࡞࠸୍⯡ⓗ࡞ὶື໬๣ࢆῧຍࡍࡿࡇ࡜࡛㸪 2) CFT ⏝ࡢㄪྜ࡛ࡣ㸪CFT 㐀඘ሸࢥࣥࢡ࣮ࣜࢺࡢ┠ࢫࣛࣥࣉࣇ࣮ࣟࡀチᐜ್࡟ᅇ᚟ࡋࡓࠋᶆ್ࢆ‶㊊ࡍࡿ್࡛࠶ࡗࡓࠋ 6) ᅽ⦰ᙉᗘ࡜㟼ᙎᛶಀᩘࡢ㛵ಀࡣ㸪୍⯡ⓗ࡞ࢥࣥࢡࣜ 3) ຍᅽࣈ࣮ࣜࢹ࢕ࣥࢢヨ㦂࡛ࡣ㸪ୗ㝈್ᐤࡾࡢ್ࢆ♧࣮ࢺ࡜ྠ➼࡛࠶ࡗࡓࠋㅰ ㎡ᮏ◊✲ࢆ⾜࠺࡟࠶ࡓࡾ㸪㛵ᮾᏱ㒊ࢥࣥࢡ࣮ࣜࢺᕤᴗᰴᘧ఍♫㸪BASF ࢪࣕࣃࣥᰴᘧ఍♫㸪ᕤᏛ㝔኱Ꮫ㜿㒊◊✲ᐊ࡟ࡈ༠ຊ㡬ࡁࡲࡋࡓࠋ
ࡇࡇ࡟௜グࡋ࡚ㅰពࢆ⾲ࡋࡲࡍࠋཧ⪃ᩥ⊩1) ࢭ࣓ࣥࢺ᪂⪺♫㸸≉㞟ࠕ㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢ⌧≧࡜ᒎᮃࠖ᭶หࢥࣥࢡ࣮ࣜࢺࢸࢡࣀ㸪Vol.29㸪No.3㸪pp.70-116㸪2010.32) ᑠἨ࣭Ⳣಛ࣭㜿ྜ㸸᪂つ࡞ప⢓ᛶᆺቑ⢓๣⣔㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢᇶᮏ≉ᛶ(ࡑࡢ 1࣭ࡑࡢ 2)㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟(㛵ᮾ)㸪pp.315-318㸪2011.83) ᪥ᮏᘓ⠏Ꮫ఍㸸ࢥࣥࢡ࣮ࣜࢺ࣏ࣥࣉᕤἲ᪋ᕤᣦ㔪࣭ྠゎㄝ㸪pp.237-239㸪19944) ᪥ᮏᘓ⠏Ꮫ఍㸸㧗⪏ஂᛶ㕲➽ࢥࣥࢡ࣮ࣜࢺ㐀タィ᪋ᕤᣦ㔪(᱌)࣭ྠゎㄝ㸪p.7㸪19915) ᪂㒔ᕷࣁ࢘ࢪࣥࢢ༠఍㸸ࢥࣥࢡ࣮ࣜࢺ඘ሸ㗰⟶(CFT)㐀ᢏ⾡ᇶ‽࣭ྠゎㄝࡢ㐠⏝ཬࡧィ⟬౛➼㸪2012.86) ㇂ཱྀ࣭ቑ⏣࣭∵ᓥ㸸㧗ὶືࢥࣥࢡ࣮ࣜࢺࡢ࣏ࣥࣉᅽ㏦࡟ࡼࡿရ㉁ኚ໬࡟㛵ࡍࡿ◊✲㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛㄽᩥ㞟㸪Vol.9㸪No1㸪
pp.71-85㸪1998.17) ᪥ᮏᘓ⠏Ꮫ఍㸸㕲➽ࢥࣥࢡ࣮ࣜࢺᵓ㐀ィ⟬つ‽࣭ྠゎㄝ㸪pp.38-39㸪1999.11

STUDY ON PRACTICAL USE OF LOW-VISCOSITY TYPE HIGH FLUIDITY CONCRETE
WITH VISCOSITY AGENT
Y.Furukawa, T.Oh-oka, R,Sato , and H.Nakata
This study has examined high fluidity concrete using air-entraining and high-range water-reducing admixture with viscosity
agent for practical use. As a result, bleeding satisfied target value as far as water-cement ration was less than 50%. In addition, thequantity of sedimentation was less than 2mm and satisfied target value. It was confirmed that pumpability was superior by thepressed bleeding test. About mechanical properties, compressive strength and static modulus of elasticity was equal to normal
concrete. In conclusion, it was revealed that high fluidity concrete using air-entraining and high-range water-reducing admixture
with viscosity agent was equal to conventional high fluidity concrete.

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