JPH059384B2 - - Google Patents
Info
- Publication number
- JPH059384B2 JPH059384B2 JP6510884A JP6510884A JPH059384B2 JP H059384 B2 JPH059384 B2 JP H059384B2 JP 6510884 A JP6510884 A JP 6510884A JP 6510884 A JP6510884 A JP 6510884A JP H059384 B2 JPH059384 B2 JP H059384B2
- Authority
- JP
- Japan
- Prior art keywords
- cement
- mortar
- concrete
- rapid hardening
- hardening material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004568 cement Substances 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 27
- 239000002002 slurry Substances 0.000 claims description 14
- 239000011083 cement mortar Substances 0.000 claims description 11
- 239000004570 mortar (masonry) Substances 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- -1 calcium aluminates Chemical class 0.000 description 5
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 229920005610 lignin Polymers 0.000 description 3
- 229910004261 CaF 2 Inorganic materials 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910052925 anhydrite Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229910052920 inorganic sulfate Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 150000004760 silicates Chemical class 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-N Gluconic acid Natural products OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 239000000174 gluconic acid Substances 0.000 description 1
- 235000012208 gluconic acid Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
（産業上の利用の分野）
本発明は表面状態の良好な急硬性のセメントモ
ルタルまたはコンクリートの製法に関する。
（従来の技術と問題点）
従来から、急硬性のセメントモルタルまたはコ
ンクリートは、あらかじめ練りまぜられたセメン
トモルタルまたはコンクリートにカルシウムアル
ミネートと無機硫酸塩からなるセメント急硬材を
混和して製造されている。特に、施工性改善や多
量打設を行なうため急硬性のセメントモルタルま
たはコンクリートを連続的に製造する場合、セメ
ント急硬材をスラリー状にして定量的に混和し、
二次製品や建造物等に用いられている。しかし、
これらは、硬化後のモルタルまたはコンクリート
の表面が島模様になり見栄えが悪るく商品価値が
低下したり、またセメント急硬材をスラリー状に
するとスラリー練り置き時間が長くなるに従つて
硬化時間が短くなるという欠点があつた。
（発明の目的）
本発明はモルタルまたはコンクリートを混練し
た後セメント急硬材を混和して急硬性のセメント
モルタルまたはコンクリートを製造する方法にお
いて、硬化後のモルタルまたはコンクリートの表
面に模様が生じたり、また、硬化時間が短縮され
ない急硬性のセメントモルタルまたはコンクリー
トの製法を提供することを目的とする。
（発明の構成）
本発明は、モルタルまたはコンクリートを混練
した後、セメント急硬材を混和して急硬性のセメ
ントモルタルまたはコンクリートを製造する方法
において、セメント急硬材とリグニンスルホン酸
またはその塩を含有するスラリーを混和すること
を特徴とする。
以下、詳しく本発明を説明する。
まず、本発明は、セメント急硬材を混和しない
モルタルまたはコンクリートを混練し、次いでこ
れに、セメント急硬材とリグニンスルホン酸また
はその塩を含有するスラリーを混和することが重
要である。このようにすることによつて初めて良
好な製品が得られる。次に本発明に使用される材
料について説明する。セメントとして、普通、早
強超早超、、中庸熱、白色などのポルトランドセ
メントや、シリカ、フライアツシユ、スラグなど
を混和した混合セメントのいずれも使用可能であ
る。本発明のセメント急硬材を混和していないモ
ルタルまたはコンクリートを混練する際の材料の
投入順序や、その際の骨材の種類、添加量、水
量、その他混和材については特に制限はない。
次に、リグニンスルホン酸またはその塩を含有
するセメント急硬材スラリーについて説明する。
通常、セメント急硬材はセメント凝結遅延剤と
併用して用いられる。
本発明に用いるセメント急硬材としては、CA、
C3A、CA2、C12A7、C3A3CaF2、C11A7CaF2等の
結晶質カルシウムアルミネートやこれらの組成を
有する無定形カルシウムアルミネート、これらの
結晶質または無定形のカルシウムアルミネートと
無機硫酸塩との混合物、塩化カルシウム、水ガラ
ス、アルミン酸ナトリウム、アルミナセメント等
があげられ、これらを１種または２種以上を使用
する。なお、強度発現の点から好ましいセメント
急硬材は、CaO33〜47％含む無定形カルシウムア
ルミネート100部と無水石膏100〜300部からなる
ものである。これらの使用量は、施工対象に応じ
て、セメントに対して30％以下で選択使用する。
また、本発明に用いるセメント凝結遅延剤とし
ては、カリウム、ナトリウム、カルシウム、マグ
ネシウム、アンモニウム等の炭酸塩、硫酸塩、硝
酸塩、リン酸塩、ケイ酸塩、ホウ酸塩、フツ化
物、ケイフツ化物等の無機塩やリン酸、ホウ酸等
の無機酸、あるはヒドロキシカルボン酸等の有機
酸またはこれらのナトリウム、カリウム、カルシ
ウム、マグネシウム等の塩、シヨ糖、グルコー
ス、ガラクトース、フラクトース等の糖類、なら
びに高級アルコール硫酸エステル等があげられ、
これら１種または２種以上を使用する。これらの
凝結遅延剤の中でも、グルコン酸またはその水溶
性塩５〜20％、クエン酸またはそのアルカリ塩10
〜30％および炭酸アルカリ50〜85％よりなる組成
のものは強度と可使時間の関係から好適である。
本発明は、以上説明したセメント急硬材をセメ
ントモルタルまたはコンクリートの混練物に混和
するにはセメント急硬材とリグニンスルホン酸ま
たはその塩を含有するスラリーとして混和する。
本発明に用いるリグニンスルホン酸又はその塩
の市販品としては、例えば山陽国策パルプ(株)商品
名「サンフロー」、「サンエキス」、「バニレツク
ス」、ポゾソス物産(株)商品名「ポゾリス」、ノルウ
エー製・ボルガード社商品名「ウルトラジン」な
どがある。その添加量はセメント急硬材に対して
0.5〜５％、好ましくは１〜３％であり、0.5％未
満では表面状態を良好とする効果はなく、５％を
こえて添加してもその効果はさらに向上すること
はない。セメント急硬材とリグニンスルホン酸ま
たはその塩を含有する急硬材スラリーの製造方法
としては、通常セメント急硬材に対して50〜100
％程度の水にセメント凝結遅延剤を溶解した後、
リグニンスルホン酸またはその塩とセメント急硬
材を入れてスラリーとすればよい。なお明細書に
記載の部及び％はいずれも重量基準で示した。
（発明の実施例）
実施例
普通ポルトランドセメント100部、６号硅砂80
部、水30部、減水剤として花王石鹸(株)商品名「マ
イテイー150」15部、を配合してセメント急硬材
を混和しないモルタルを得た。次に、CaO43％含
有の無定形カルシウムアルミネート（ブレーン値
4500cm2／ｇ）に型無水石膏（ブレーン値6200
cm2／ｇ）を1.5重量倍量混合したセメント急硬材
100部、水60部とセメント凝結遅延剤として、グ
ルコン酸ソーダ７％、クエン酸23％、炭酸カリウ
ム70％の組成のものを4.7倍、及びリグニンスル
ホン酸塩を表に示す割合で用いた。まず、水にセ
メン凝結遅延剤を溶解し、次いで、リグニンスル
ホン酸塩、セメント急硬材を混和して各リグニン
スルホン酸塩を含むセメント急硬材スラリーを得
た。
次に、セメント急硬材を含まないモルタル100
部に対して各リグニンスルホン酸塩を含むセメン
ト急硬材スラリー13.7部をスラリー製造時から
10、120、240分経過後に混和にて急硬セメントモ
ルタルを製造した。その条件及び結果を表に示
す。
比較のためリグニンスルホン酸塩を添加しない
以外は実施例１と同様に行つた場合（実験No.１）
とリグニンスルホン酸塩（ホゾリスNo.８）をセメ
ント急硬材を含有しないモルタルに混和した以外
は実施例１と同様に行つた場合（実験No.６）につ
いてその条件及び結果を表に併記した。
なお表に示す凝結時間とはセメント急硬材スラ
リーを混和してから、流動性を失うまでの時間を
示し、圧縮強度は４×４×16cmの供試体で測定し
た。
(Field of Industrial Application) The present invention relates to a method for producing rapidly hardening cement mortar or concrete with a good surface condition. (Conventional technology and problems) Conventionally, rapid hardening cement mortar or concrete has been manufactured by mixing cement rapid hardening material consisting of calcium aluminate and inorganic sulfate into pre-mixed cement mortar or concrete. There is. In particular, when rapidly hardening cement mortar or concrete is manufactured continuously in order to improve workability or place large quantities, rapidly hardening cement material is quantitatively mixed in the form of a slurry.
It is used in secondary products and buildings. but,
After hardening, the surface of mortar or concrete becomes island-like, which looks bad and reduces commercial value.Also, when cement hardening material is made into a slurry, the hardening time increases as the slurry kneading time becomes longer. The disadvantage was that it became shorter. (Objective of the Invention) The present invention provides a method for producing rapidly hardening cement mortar or concrete by kneading mortar or concrete and then mixing a cement rapidly hardening material, in which a pattern is formed on the surface of the mortar or concrete after hardening, Another object of the present invention is to provide a method for producing rapidly hardening cement mortar or concrete that does not shorten hardening time. (Structure of the Invention) The present invention provides a method for producing a rapidly hardening cement mortar or concrete by kneading mortar or concrete and then mixing a cement rapidly hardening material. It is characterized by mixing the slurry contained therein. The present invention will be explained in detail below. First, in the present invention, it is important to knead mortar or concrete that is not mixed with cement rapid hardening material, and then mix therein with a slurry containing cement rapid hardening material and lignin sulfonic acid or its salt. Only by doing this can a good product be obtained. Next, materials used in the present invention will be explained. As the cement, any of ordinary, early-strength, ultra-early, medium-heat, and white Portland cements, and mixed cements containing silica, fly ash, slag, etc., can be used. There are no particular restrictions on the order of adding materials when mixing mortar or concrete that is not mixed with the cement rapid hardening material of the present invention, the type of aggregate, the amount added, the amount of water, and other admixtures. Next, a cement rapid hardening slurry containing ligninsulfonic acid or its salt will be explained. Usually, cement rapid hardening agents are used in combination with cement setting retarders. The cement rapid hardening materials used in the present invention include CA,
Crystalline calcium aluminates such as C 3 A, CA 2 , C 12 A 7 , C 3 A 3 CaF 2 , C 11 A 7 CaF 2 , amorphous calcium aluminates having these compositions, and these crystalline or amorphous calcium aluminates. Examples include a mixture of regular calcium aluminate and inorganic sulfate, calcium chloride, water glass, sodium aluminate, alumina cement, etc., and one or more of these may be used. In addition, from the viewpoint of strength development, a preferable cement rapid hardening material is one consisting of 100 parts of amorphous calcium aluminate containing 3 to 47% CaO3 and 100 to 300 parts of anhydrite. The amount of these materials to be used should be selected and used at 30% or less of cement, depending on the construction target. Further, the cement setting retarder used in the present invention includes carbonates, sulfates, nitrates, phosphates, silicates, borates, fluorides, silicates, etc. of potassium, sodium, calcium, magnesium, ammonium, etc. Inorganic salts, inorganic acids such as phosphoric acid and boric acid, or organic acids such as hydroxycarboxylic acids, or salts thereof such as sodium, potassium, calcium, and magnesium, sugars such as sucrose, glucose, galactose, and fructose; Examples include higher alcohol sulfate esters,
One or more of these may be used. Among these set retarders, gluconic acid or its water-soluble salt 5-20%, citric acid or its alkali salt 10%
30% and 50 to 85% alkali carbonate is preferred from the viewpoint of strength and pot life. In the present invention, in order to mix the cement rapid hardening material explained above into a cement mortar or concrete mixture, it is mixed as a slurry containing the cement rapid hardening material and ligninsulfonic acid or its salt. Commercially available products of ligninsulfonic acid or its salts used in the present invention include, for example, Sanyo Kokusaku Pulp Co., Ltd.'s trade name "Sunflow", "Sun Extract", "Vanirex", Pozososu Bussan Co., Ltd.'s trade name "Pozolith", There are products such as ``Ultra Gin'' made in Norway and manufactured by Bollgard. The amount added is relative to the cement hardening material.
The amount is 0.5 to 5%, preferably 1 to 3%; if it is less than 0.5%, there is no effect of improving the surface condition, and if it is added in excess of 5%, the effect will not be further improved. As a method for producing a rapid hardening material slurry containing cement rapid hardening material and lignin sulfonic acid or its salt, it is usually 50 to 100% of the cement rapid hardening material.
After dissolving cement retardant in water about %,
A slurry may be prepared by adding lignin sulfonic acid or its salt and a cement rapid hardening agent. Note that all parts and percentages stated in the specification are expressed on a weight basis. (Example of the invention) Example 100 parts of ordinary Portland cement, 80 parts of No. 6 silica sand
30 parts of water and 15 parts of "Mighty 150" (trade name, manufactured by Kao Soap Co., Ltd.) as a water reducing agent were mixed to obtain a mortar that does not mix with cement rapid hardening material. Next, amorphous calcium aluminate containing 43% CaO (Blaine value
4500cm 2 /g) and molded anhydrite (Brain value 6200
cm 2 /g) mixed with 1.5 times the weight of cement rapid hardening material
100 parts of water, 4.7 times the composition of 7% sodium gluconate, 23% citric acid, and 70% potassium carbonate as a cement setting retarder, and lignin sulfonate in the proportions shown in the table. First, a cement retardant was dissolved in water, and then a lignin sulfonate and a cement rapid hardening material were mixed to obtain a cement rapid hardening material slurry containing each lignin sulfonate. Next, mortar 100 that does not contain cement quick hardening material
13.7 parts of cement rapid hardening slurry containing each lignin sulfonate from the time of slurry production.
Rapid hardening cement mortar was produced by mixing after 10, 120, and 240 minutes. The conditions and results are shown in the table. For comparison, the same procedure as Example 1 was carried out except that lignin sulfonate was not added (Experiment No. 1)
The conditions and results of the case (Experiment No. 6), which was carried out in the same manner as in Example 1 except that lignin sulfonate (Hozolith No. 8) was mixed into a mortar containing no cement rapid hardening material, and the results are also listed in the table. . The setting time shown in the table indicates the time from when the cement rapidly hardening slurry is mixed until it loses fluidity, and the compressive strength was measured using a 4 x 4 x 16 cm specimen.
【表】
（発明の効果）
本発明によると、凝結時間が安定し作業性が良
好でかつ硬化体表面の良好なモルタルまたはコン
クリートの打設が可能である。[Table] (Effects of the Invention) According to the present invention, it is possible to cast mortar or concrete with stable setting time, good workability, and a good hardened surface.
Claims (1)
メント急硬材を混和して急硬性のセメントモルタ
ルまたはコンクリートを製造する方法において、
セメント急硬材とリグニンスルホン酸またはその
塩を含有するスラリーを混和することを特徴とす
る急硬性セメントモルタルまたはコンクリートの
製法。1. A method for producing rapid hardening cement mortar or concrete by mixing mortar or concrete and then mixing a cement rapid hardening material,
A method for producing rapidly hardening cement mortar or concrete, which comprises mixing a rapidly hardening cement material with a slurry containing ligninsulfonic acid or its salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6510884A JPS60210553A (en) | 1984-04-03 | 1984-04-03 | Manufacture of quick-setting cement mortar or concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6510884A JPS60210553A (en) | 1984-04-03 | 1984-04-03 | Manufacture of quick-setting cement mortar or concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60210553A JPS60210553A (en) | 1985-10-23 |
| JPH059384B2 true JPH059384B2 (en) | 1993-02-04 |
Family
ID=13277369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6510884A Granted JPS60210553A (en) | 1984-04-03 | 1984-04-03 | Manufacture of quick-setting cement mortar or concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60210553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3014965U (en) * | 1995-02-20 | 1995-08-22 | 義三 大野 | Impurity remover in bathtub |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4823432B2 (en) * | 2001-04-25 | 2011-11-24 | 電気化学工業株式会社 | Tunnel lining method |
-
1984
- 1984-04-03 JP JP6510884A patent/JPS60210553A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3014965U (en) * | 1995-02-20 | 1995-08-22 | 義三 大野 | Impurity remover in bathtub |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60210553A (en) | 1985-10-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |