JPH05238787A - High-strength cement composition - Google Patents
High-strength cement compositionInfo
- Publication number
- JPH05238787A JPH05238787A JP14815791A JP14815791A JPH05238787A JP H05238787 A JPH05238787 A JP H05238787A JP 14815791 A JP14815791 A JP 14815791A JP 14815791 A JP14815791 A JP 14815791A JP H05238787 A JPH05238787 A JP H05238787A
- Authority
- JP
- Japan
- Prior art keywords
- water
- fine powder
- blast furnace
- weight
- powder
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/08—Slag cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は高炉スラグ微粉末を用い
た高強度セメント組成物に関する。TECHNICAL FIELD The present invention relates to a high-strength cement composition using blast furnace slag fine powder.
【０００２】[0002]
【従来の技術】高炉スラグ微粉末は、製鉄所の高炉より
副生されるスラグを水冷、空冷などの急冷によりガラス
質としたものを粉砕し、一般には２７５０ｃｍ2 ／ｇ以
上の粉末度としたものである。このような高炉スラグ微
粉末は潜在水硬性を有し、水酸化カルシウム、セメン
ト、カルシウムサルフォアルミネート鉱物、各種アルカ
リ塩、石膏などの塩基性刺激剤の少なくとも一種、ある
いは二種以上を添加することによってすみやかに水硬性
を発現し、強固に硬化することが知られており、これら
の性質を利用したものとして高硫酸塩スラグセメント、
改良高炉セメントなどの利用が検討されて来た。 2. Description of the Related Art Fine blast furnace slag powder is obtained by crushing slag by-produced from a blast furnace of an iron mill into water by rapid cooling such as water cooling or air cooling, and generally pulverized to a fineness of 2750 cm 2 / g or more. It is a thing. Such blast furnace slag fine powder has latent hydraulicity, and at least one or two or more basic stimulants such as calcium hydroxide, cement, calcium sulphoaluminate mineral, various alkali salts and gypsum are added. It is known that by rapidly expressing hydraulic properties and hardening strongly, high sulfate slag cement, which utilizes these properties,
The use of improved blast furnace cement has been considered.
【０００３】[0003]
【発明が解決しようとする問題点】上述の高炉セメント
微粉末とアルカリ刺激剤を組み合せたものは、低発熱性
であり熱によるひびわれ防止効果が大きいことや、硬化
・乾燥に際しての収縮が小さいこと、又化学薬品抵抗性
に優れていることなどの多くの利点を有している。しか
しながら、強度発現が穏やかであり、通常のセメント組
成物に比べて一定の強度を得るための材令が長くなるこ
とや、高強度を得ることが難しいなどの欠点があった。
今後のこれらの組成物を広範な分野へ利用していくため
には、上記欠点の改善が切望されている。The combination of the blast furnace cement fine powder and the alkali stimulant described above has a low exothermic property and has a great effect of preventing cracking due to heat, and has a small shrinkage upon curing and drying. Also, it has many advantages such as excellent chemical resistance. However, the strength is mildly expressed, and there are drawbacks such that the strength for obtaining a certain strength is longer than that of an ordinary cement composition, and it is difficult to obtain high strength.
In order to utilize these compositions in a wide range of fields in the future, improvement of the above-mentioned drawbacks has been earnestly desired.
【０００４】以上のことより、本発明者らは種々検討を
加えた結果、高炉スラグ微粉末とアルカリ刺激剤さらに
は水以外に高炉スラグ微粉末よりも１オーダー細かい超
微粉と高性能減水剤を組み合せ、低水セメント比とする
ことにより、上記欠点が解決でき、強度発現の優れた高
強度セメント組成物を得ることができる知見を得て本発
明を完成するに到った。From the above, as a result of various investigations by the present inventors, in addition to blast furnace slag fine powder and alkali stimulant, in addition to water, ultrafine powder one order finer than blast furnace slag fine powder and a high-performance water reducing agent were used. The present invention has been completed by obtaining the knowledge that the above-mentioned drawbacks can be solved and a high-strength cement composition excellent in strength development can be obtained by a combination and a low water cement ratio.
【０００５】[0005]
【問題点を解決するための手段】本発明は、アルカリ刺
激剤と高炉スラグ微粉末との合計量１００重量部に対し
４２重量部以上７０重量部未満の高炉スラグ微粉末と、
高炉スラグ微粉末よりも少なくとも１オーダー細かい超
微粉、石膏または石膏とポルトランドセメントからなる
アルカリ刺激剤、高性能減水剤および水を主成分とする
高強度セメント組成物である。SUMMARY OF THE INVENTION The present invention comprises 42 parts by weight or more and less than 70 parts by weight of blast furnace slag fine powder with respect to 100 parts by weight of the total amount of alkali stimulant and blast furnace slag fine powder.
A high-strength cement composition containing ultrafine powder that is at least one order finer than blast furnace slag fine powder, gypsum or an alkaline stimulant composed of gypsum and Portland cement, a high-performance water reducing agent, and water.
【０００６】以下本発明を詳細に説明する。本発明にお
ける高炉スラグ粉末とは、製鉄所の高炉より副生される
スラグを水冷、空冷などの急冷によりガラス質とし、さ
らにそれを粉砕したもので、一般には、粉末度２７５０
ｃｍ2 ／ｇ（プレーン値）以上のものであるが、活性を
上げるため通常のセメントより粉末度を大きくし３５０
０ｃｍ2 ／ｇ（プレーン値）としたものが多く使用され
ている。さらに、８０００〜１００００ｃｍ2 ／ｇ程度
のものも使用されている。これらはそれ自身では水硬性
を有していないが、アルカリ刺激剤の組み合せによって
強固に硬化する。このような性質を潜在水硬性と云う。
なお、予め少量の石膏を加えて粉砕するような方法で製
造されているものもある。The present invention will be described in detail below. The blast furnace slag powder in the present invention is slag by-produced from a blast furnace of an iron mill, which is made into glass by rapid cooling such as water cooling or air cooling, and is further crushed, and generally has a fineness of 2750.
cm 2 / g (plain value) or more, but in order to increase activity
The one with 0 cm 2 / g (plain value) is often used. Further, a material having a size of about 8000 to 10000 cm 2 / g is also used. Although they do not have hydraulic properties by themselves, they harden strongly when combined with an alkaline stimulant. Such a property is called latent hydraulic property.
Some of them are manufactured by a method in which a small amount of gypsum is added and crushed in advance.
【０００７】本発明で用いるアルカリ刺激剤とは従来よ
り知られているものであり、石膏または石膏とポルトラ
ンドセメントからなるものである。添加量は高炉スラグ
１００重量部の内割で５０重量部以下、より好ましくは
３０重量部未満である。The alkali stimulant used in the present invention is conventionally known and is composed of gypsum or gypsum and Portland cement. The amount of addition is 50 parts by weight or less, more preferably less than 30 parts by weight, based on 100 parts by weight of blast furnace slag.
【０００８】本発明で使用する超微粉とは、通常一般に
使用されている高炉スラグ粉末（平均１０〜３０μｍ程
度）よりも少なくとも１オーダー細かい平均粒径を有す
るものを意味し、平均粒径が少なくとも２オーダー細か
いものが混練物の流動性の面から好ましい。また、超微
粉の一部あるいは全量としてアルカリ刺激剤を微粉砕し
たものを使用することも可能である。The ultrafine powder used in the present invention means one having an average particle size finer by at least one order than that of the generally used blast furnace slag powder (average 10 to 30 μm), and the average particle size is at least A finer product of two orders of magnitude is preferable from the viewpoint of fluidity of the kneaded product. It is also possible to use finely pulverized alkali stimulant as a part or the whole amount of the ultrafine powder.
【０００９】超微粉としては、具体的にはシリコン、含
シリコン合金およびジルコニアを製造する際の副生物で
あるシリカダストやシリカ質ダストが特に好適であり、
また炭酸カルシウム、シリカゲル、酸化チタン、酸化ア
ルミニウムなどの微粉末も使用できる。また、オパール
質珪石、フライアッシュ、スラグやセメントなどのアル
カリ刺激剤を微粉砕したものを用いることもできる。こ
れらは単独で使用しても良く、２種以上を併用しても良
い。As the ultrafine powder, specifically, silica dust or siliceous dust, which is a by-product in the production of silicon, silicon-containing alloy and zirconia, is particularly suitable,
Fine powders of calcium carbonate, silica gel, titanium oxide, aluminum oxide, etc. can also be used. It is also possible to use finely crushed alkali stimulants such as opal silica, fly ash, slag and cement. These may be used alone or in combination of two or more.
【００１０】超微粉の使用量は、少なくとも１オーダー
大きな粒子、即ち、高炉スラグ微粉末の６０〜９５重量
部に対し４０〜５重量部が好ましい。The amount of the ultrafine powder used is preferably 40 to 5 parts by weight with respect to 60 to 95 parts by weight of particles having at least one order of magnitude, that is, blast furnace slag fine powder.
【００１１】５重量部未満では高強度の発現効果が小さ
く、また、流動性の改善が十分でなく、４０重量部を越
えると混練物の流動性が著しく低下する。If it is less than 5 parts by weight, the effect of exhibiting high strength is small, and the fluidity is not sufficiently improved. If it exceeds 40 parts by weight, the fluidity of the kneaded product is remarkably lowered.
【００１２】本発明における高性能減水剤とはセメント
に多量添加しても凝結の著しい遅延や過度の空気連行を
伴わない分散能力の大きな界面活性剤であって、例えば
ナフタリンスルホン酸塩のホルムアルデヒド縮合物、メ
ラミンスルホン酸塩のホルムアルデヒド縮合物、高分子
量リグニンスルホン酸塩等を主成分とするものがあげら
れる。高性能減水剤の使用量は従来、固体に対し固形分
として０．３〜１重量％が使用されているが、本発明に
おいては、それよりも多量に添加することが好ましく、
１〜５重量部が更に好ましい。The high-performance water-reducing agent in the present invention is a surfactant having a large dispersibility which does not cause a significant delay in setting or excessive air entrainment even when a large amount is added to cement. Examples thereof include those containing, as a main component, a melamine sulfonate formaldehyde condensate, a high molecular weight lignin sulfonate, and the like. Conventionally, the amount of the high-performance water reducing agent used is 0.3 to 1% by weight as a solid content relative to the solid, but in the present invention, it is preferable to add a larger amount than that.
1 to 5 parts by weight is more preferable.
【００１３】なお、高炉スラグ粉末に対する高性能減水
剤の効果は低いが、これは、高炉スラグ粉末の水中での
ρ−電位が（−）であるためである。高性能減水剤の効
果はＣａ2+イオンの添加によって改善され、例えば水酸
化カルシウムを添加する場合、０．２〜２重量％程度の
添加より好ましくは０．５重量％の添加により流動性は
改善される。The effect of the high-performance water reducing agent on the blast furnace slag powder is low, because the ρ-potential of the blast furnace slag powder in water is (-). The effect of the superplasticizer is improved by the addition of Ca 2+ ions. For example, when calcium hydroxide is added, the fluidity is improved by the addition of about 0.2 to 2% by weight, preferably 0.5% by weight. Be improved.
【００１４】このような高性能減水剤の使用量におい
て、超微粉を組み合せることにより水固体比が２５％以
下でも通常の方法により成形可能な流動性のある混練物
を得ることができる。By mixing ultrafine powders in such an amount of the high-performance water reducing agent, it is possible to obtain a flowable kneaded product which can be molded by a usual method even when the water solid ratio is 25% or less.
【００１５】本発明において使用する水は成形上必要な
ものであり、高強度硬化体を得るためにはできる限り少
量用いるのが良く、固体（高炉スラグ、アルカリ刺激
剤、超微粉の合計）１００重量部に対し水１２．５〜３
０重量部が好ましく、１５〜２８重量部が更に好まし
い。水の量が３０重量部より多いと高強度硬化体を得る
ことが困難であり、１２．５重量部より少ないと通常の
流し込み等の成形が困難となる。なお、圧接成形等にお
いてはこれに制限されるものでなく、１２．５重量部よ
り少ない場合においても成形が可能となる。また、押し
出し成形等の通常セメントコンクリートに用いられてい
る成形方法を用いることも可能である。The water used in the present invention is necessary for molding, and it is preferable to use as little water as possible in order to obtain a high-strength cured product, and the solid (total of blast furnace slag, alkali stimulant, and ultrafine powder) 100 12.5 to 3 parts by weight of water
0 parts by weight is preferable, and 15 to 28 parts by weight is more preferable. If the amount of water is more than 30 parts by weight, it is difficult to obtain a high strength cured product, and if it is less than 12.5 parts by weight, ordinary molding such as casting becomes difficult. It should be noted that the pressure contact molding or the like is not limited to this, and molding is possible even when the amount is less than 12.5 parts by weight. Further, it is also possible to use a molding method which is usually used for cement concrete such as extrusion molding.
【００１６】以上の配合の他に各種骨材を組み合せて使
用するのが一般的である。骨材としては一般に土木建築
の分野において用いられているもので良く、川砂、山
砂、海砂、砕砂、スラグ砂などや、砕石、川砂利、スラ
グ砕石、軽量骨材などが用いられる。また、特に高強度
を必要とする場合には、モース硬度６以上あるいはヌー
プ圧子硬度７００ｋｇ／ｍｍ2 以上のものを使用するの
が良く、それらを例示すれば珪石、エメリー、黄鉄鉱、
磁鉄鉱、黄玉、ローソン石、コランダム、フェナサイ
ト、スピネル、緑柱石、金緑石、電気石、花岡岩、緑柱
石、十字石、ジルコン、焼成ボーキサイト、炭化硼素、
炭化タングステン、フェロシリコンナイトライド、窒化
硅素、溶融シリカ、電融マグネシア、炭化硅素、立方晶
窒化硼素、陶磁器粉砕品、鉄粉、鉄球、鉄くずなどであ
る。In addition to the above-mentioned composition, it is general to use various aggregates in combination. The aggregate may be one generally used in the field of civil engineering and construction, and river sand, mountain sand, sea sand, crushed sand, slag sand, etc., crushed stone, river gravel, slag crushed stone, lightweight aggregate, etc. may be used. Also, when particularly high strength is required, it is preferable to use Mohs hardness of 6 or more or Knoop indenter hardness of 700 kg / mm 2 or more. Examples thereof include silica stone, emery, pyrite,
Magnetite, yellow jade, Lawsonite, corundum, phenasite, spinel, beryl, anemite, tourmaline, Hanaokaiwa, beryl, cruciate, zircon, calcined bauxite, boron carbide,
Tungsten carbide, ferrosilicon nitride, silicon nitride, fused silica, fused magnesia, silicon carbide, cubic boron nitride, ground ceramics, iron powder, iron balls, iron scrap, etc.
【００１７】その他に、繊維や網などの補強材を組み合
せることも可能である。繊維としては、スチール繊維、
ステンレス繊維、石綿やアルミナ繊維などの各種天然お
よび合成鉱物繊維、炭素繊維、ガラス繊維及びポリプロ
ピレン、ビニロン、アクリロニトリル、セルロース、ケ
プラーなどの天然又は合成の有機繊維等があげられる。
又、補強材としては、従来より用いられている鋼棒やＦ
ＲＰロッド棒などを用いることも可能である。Besides, it is possible to combine reinforcing materials such as fibers and nets. As the fiber, steel fiber,
Examples thereof include various natural and synthetic mineral fibers such as stainless fibers, asbestos and alumina fibers, carbon fibers, glass fibers, and natural or synthetic organic fibers such as polypropylene, vinylon, acrylonitrile, cellulose and Kepler.
In addition, as a reinforcing material, a steel rod or F that has been conventionally used
It is also possible to use an RP rod rod or the like.
【００１８】又、他の機能を有するもの、例えば固体潤
滑剤や熱・電気伝導性を付与するものなどを混合するこ
とも可能である。It is also possible to mix a substance having another function, such as a solid lubricant or a substance imparting heat / electrical conductivity.
【００１９】上記材料の混合および混練方法は均一に混
合および混練できる方法であればどうような方法でも良
く、また、添加順序も制限されるものではない。The method of mixing and kneading the above materials may be any method as long as it can uniformly mix and knead, and the order of addition is not limited.
【００２０】成形物の養生には各種の養生方法を適用可
能であり、常温養生、常圧蒸気、高温高圧、高温養生の
いずれの方法でも良く、必要ならば、これらを組み合せ
て実施することも可能である。Various curing methods can be applied to the molded product, and any of room temperature curing, atmospheric pressure steam, high temperature and high pressure, and high temperature curing can be used. If necessary, these can be combined and carried out. It is possible.
【００２１】[0021]
【実施例】以下実施例をあげて本発明を更に詳細に説明
する。 実施例１ 表１に示す配合にて、真空オムニミキサー（千代田技研
製）で混練、脱泡後、４×４×１６ｃｍの供試体を作製
し、養生後圧縮強度を測定した。結果を表１に示す。な
お、養生は２０℃８０％ＲＨ １日後、２０℃水中養生
７日、２８日、５０℃湿空養生７日、１８０℃で３時間
のオートクレーブ養生を行った。The present invention will be described in more detail with reference to the following examples. Example 1 With the composition shown in Table 1, after kneading and defoaming with a vacuum omni mixer (manufactured by Chiyoda Giken), 4 × 4 × 16 cm specimens were prepared, and the compressive strength after curing was measured. The results are shown in Table 1. The curing was carried out at 20 ° C. 80% RH for 1 day, 20 ° C. in water for 7 days, 28 days, 50 ° C. in humid air for 7 days, and 180 ° C. for 3 hours in an autoclave.
【００２２】＜使用材料＞ アルカリ刺激剤：白色ポルトランドセメント（秩父製） ２水石膏（試薬特級） 「Σ１０００」（電化）無水石膏系混和材 超微粉：シリカヒューム（日本重化製） 高性能減水剤：β−ナフタレンスルホン酸塩ホルマリン
縮合物系「セルフロー１１０Ｐ」（第一工業製薬） 珪 砂：３、４、５号（等量混合） 水 ：水道水 高炉スラグ粉末：プレーン値４２００ｃｍ2 ／ｇの高炉
水砕スラグ粉砕品<Materials used> Alkali stimulant: White Portland cement (manufactured by Chichibu) 2 gypsum (reagent grade) “Σ1000” (electric) Anhydrite-based admixture Ultrafine powder: Silica fume (Nippon Heavy Industries) High performance water reduction Agent: β-naphthalene sulfonate formalin condensate type "Cellflow 110P" (Daiichi Kogyo Seiyaku Co., Ltd.) Silica sand: Nos. 3, 4, 5 (equal mixture) Water: Tap water Blast furnace slag powder: Plain value 4200 cm 2 / g Granulated blast furnace granulated slag
【００２３】[0023]
【表１】 [Table 1]
【００２４】実施例２ 実施例１における実験No１〜３、５の配合を用いて、硬
化収縮および乾燥収縮ひずみを測定し、両者の合計より
寸法安定性の評価を行なった。硬化収縮は米国工兵隊法
に準じて実施し、乾燥収縮は水中養生７日後２０℃５０
％ＲＨにおいてコンタクトゲージ法により測定した。ま
た、比較例として高炉スラグ、セメント及び石膏の代り
にセメントのみを用いた配合例（No８）についても、同
様の評価を行なった。配合組成及び評価結果を表２に示
す。Example 2 Using the formulations of Experiment Nos. 1 to 5 in Example 1, the curing shrinkage and the drying shrinkage strain were measured, and the dimensional stability was evaluated from the total of both. Curing shrinkage is carried out according to the US Corps of Engineers method, and drying shrinkage is after curing in water for 7 days at 20 ° C.
It was measured by a contact gauge method at% RH. In addition, the same evaluation was performed on a compounding example (No. 8) in which only cement was used instead of blast furnace slag, cement and gypsum as a comparative example. Table 2 shows the composition and evaluation results.
【００２５】[0025]
【表２】 [Table 2]
【００２６】[0026]
【発明の効果】以上のごとく、本発明によれば、乾燥収
縮の少ない高強度セメント組成物を得ることが可能であ
る。また、高炉スラグを主成分とすることより耐薬品性
にすぐれ、かつ、高強度のものが得られるのでより堅ろ
う性にも優れたコンクリート用セメント組成物の提供が
可能となった。このようなセメント組成物は土木建築分
野での利用はもちろんのこと、モールド、砥石、機械部
材などの工業機材への利用が可能となる。As described above, according to the present invention, it is possible to obtain a high strength cement composition with less drying shrinkage. Further, by using blast furnace slag as a main component, it is possible to provide a cement composition for concrete which is excellent in chemical resistance and has high strength, so that it is also excellent in fastness. Such a cement composition can be used not only in the field of civil engineering and construction, but also in industrial equipment such as molds, grindstones, and mechanical members.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０４Ｂ 18:14 Ｚ 2102−4Ｇ 24:00） 2102−4Ｇ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location C04B 18:14 Z 2102-4G 24:00) 2102-4G
Claims (1)
合計量１００重量部に対し４２重量部以上７０重量部未
満の高炉スラグ微粉末と、高炉スラグ微粉末よりも少な
くとも１オーダー細かい超微粉、石膏または石膏とポル
トランドセメントからなるアルカリ刺激剤、高性能減水
剤および水を主成分とする高強度セメント組成物。1. A blast furnace slag fine powder of 42 parts by weight or more and less than 70 parts by weight with respect to a total amount of 100 parts by weight of an alkali stimulant and a blast furnace slag fine powder, and an ultrafine powder finer by at least one order than the blast furnace slag fine powder. A high-strength cement composition containing gypsum or a gypsum and Portland cement as an alkaline stimulant, a high-performance water reducing agent, and water as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14815791A JPH05238787A (en) | 1991-05-24 | 1991-05-24 | High-strength cement composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14815791A JPH05238787A (en) | 1991-05-24 | 1991-05-24 | High-strength cement composition |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60171825A Division JPS6236059A (en) | 1985-08-06 | 1985-08-06 | High strength cement composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05238787A true JPH05238787A (en) | 1993-09-17 |
Family
ID=15446536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14815791A Pending JPH05238787A (en) | 1991-05-24 | 1991-05-24 | High-strength cement composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05238787A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269786A (en) * | 2008-05-07 | 2009-11-19 | Utsunomiya Univ | Hydraulic composition and concrete using the hydraulic composition |
| JP2010195681A (en) * | 2010-04-15 | 2010-09-09 | Taiheiyo Cement Corp | High strength concrete member for high speed traffic system structure |
| KR101272761B1 (en) * | 2012-09-13 | 2013-06-10 | 신성종합건축사사무소(주) | Activator for latent hydraulic property of blast furnace slag powder by waste ash and recycled aggregate, and non-cement mortar composition using the same |
| JP2014148434A (en) * | 2013-01-31 | 2014-08-21 | Taisei Corp | Hydraulic composition |
| KR101460097B1 (en) * | 2014-04-22 | 2014-11-10 | 주식회사 삼익세라콘 | Admixture for autoclave curing concrete |
| CN106336185A (en) * | 2016-08-16 | 2017-01-18 | 西安建筑科技大学 | Method for preparing alkali slag cement-based repair material |
-
1991
- 1991-05-24 JP JP14815791A patent/JPH05238787A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009269786A (en) * | 2008-05-07 | 2009-11-19 | Utsunomiya Univ | Hydraulic composition and concrete using the hydraulic composition |
| JP2010195681A (en) * | 2010-04-15 | 2010-09-09 | Taiheiyo Cement Corp | High strength concrete member for high speed traffic system structure |
| KR101272761B1 (en) * | 2012-09-13 | 2013-06-10 | 신성종합건축사사무소(주) | Activator for latent hydraulic property of blast furnace slag powder by waste ash and recycled aggregate, and non-cement mortar composition using the same |
| JP2014148434A (en) * | 2013-01-31 | 2014-08-21 | Taisei Corp | Hydraulic composition |
| KR101460097B1 (en) * | 2014-04-22 | 2014-11-10 | 주식회사 삼익세라콘 | Admixture for autoclave curing concrete |
| CN106336185A (en) * | 2016-08-16 | 2017-01-18 | 西安建筑科技大学 | Method for preparing alkali slag cement-based repair material |
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