JPH05229864A - Cement composition - Google Patents
Cement compositionInfo
- Publication number
- JPH05229864A JPH05229864A JP31685492A JP31685492A JPH05229864A JP H05229864 A JPH05229864 A JP H05229864A JP 31685492 A JP31685492 A JP 31685492A JP 31685492 A JP31685492 A JP 31685492A JP H05229864 A JPH05229864 A JP H05229864A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxycarboxylic acid
- cementitious
- alkali metal
- fly ash
- weight
- 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.)
- Granted
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
-
- 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
- C04B28/04—Portland 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、セメント性組成物お
よび特にフライアッシュおよびそこに使用する混合材を
含むセメント性組成物に関連する。This invention relates to cementitious compositions and in particular to cementitious compositions containing fly ash and admixtures used therein.
【０００２】フライアッシュは、アメリカン・ソサエテ
ィ・フォー・テスティング・アンド・マテリアルズ（Ａ
ＳＴＭ）の規格書Ｃ６１８において「破砕または粉末化
した石炭の燃焼から生じる微粉化残留物」と定義されて
いる。ＡＳＴＭ Ｃ６１８（その内容を引用して本書に
とり入れる）は、フライアッシュの２つの異なった型で
あるクラスＦおよびクラスＣを定義するが、前者（無煙
炭または瀝青炭の燃焼から得られる）は後者（亜瀝青炭
または亜炭の燃焼から得られる）よりもっと普通に存在
する。クラスＣフライアッシュの特性を表す１つの特徴
は、ＡＳＴＭＣ６１８にしばしば「１０％より高い」と
述べられる、高い石灰含量である。Fly ash is an American Society for Testing and Materials (A
STM) specification C618 is defined as "micronized residue resulting from the combustion of crushed or pulverized coal". ASTM C618, the content of which is incorporated herein by reference, defines two different types of fly ash, Class F and Class C, while the former (obtained from the combustion of anthracite or bituminous coal) Present more commonly than) (obtained from the combustion of bituminous coal or lignite). One feature that characterizes Class C fly ash is its high lime content, often referred to in ASTM C618 as "higher than 10%".
【０００３】セメント性組成物におけるフライアッシュ
の使用は、最終的な力や耐久性を増進させたり、浸透性
を減じるような有用な特性を授与する。そしてそれは、
例えばコンクリートに広く用いられる。しかし、（多く
の適用性において不利な）低い早期強度も授与し、硬化
時間を遅らせる。The use of fly ash in cementitious compositions confers useful properties such as increased ultimate strength and durability, and reduced permeability. and it is,
Widely used in concrete, for example. However, it also imparts a low early strength (which is a disadvantage for many applications) and delays the cure time.
【０００４】驚いたことに、この発明により、セメント
性材料、選ばれたフライアッシュと混合材の特定の型の
結合は、不利益のほとんどでときにはすべてをもたない
が、実質的にはそこに配合したフライアッシュをもつこ
とによる利益のすべてを享受するセメント性組成物を与
え得ることが発見された。ゆえに本発明によって、 （ａ）セメント性材料； （ｂ）１５−４５重量％の酸化カルシウム含量をもつフ
ライアッシュ； （ｃ）ヒドロキシカルボン酸；および （ｄ）アルカリ金属イオンの水溶性源 を含むセメント性組成物が提供される。Surprisingly, according to the invention, the binding of a particular type of cementitious material, the selected fly ash and the admixture, does not have at all most of the disadvantages, but is substantially there. It has been discovered that a cementitious composition can be provided that enjoys all of the benefits of having fly ash incorporated into. Therefore, according to the present invention, a cement comprising: (a) a cementitious material; (b) fly ash having a calcium oxide content of 15-45% by weight; (c) a hydroxycarboxylic acid; and (d) a water-soluble source of alkali metal ions. A sex composition is provided.
【０００５】さらに本発明の具体化において、 （ａ）セメント性材料； （ｂ）コンクリートの骨材 （ｃ）ヒドロキシカルボン酸のアルカリ金属塩およびヒ
ドロキシカルボン酸とアルカリ炭酸塩、重炭酸塩および
水酸化物からなる群から選ばれた化合物との混合物から
選ばれた混合材 から成るセメント性組成物が提供される。Further in the embodiment of the present invention, (a) cementitious material; (b) concrete aggregate (c) alkali metal salt of hydroxycarboxylic acid and hydroxycarboxylic acid and alkali carbonate, bicarbonate and hydroxide A cementitious composition comprising a mixed material selected from a mixture with a compound selected from the group consisting of:
【０００６】本発明は、さらにヒドロキシカルボン酸の
アルカリ金属塩およびヒドロキシカルボン酸とアルカリ
炭酸塩、重炭酸塩および水酸化物からなる群から選ばれ
た化合物との混合物から選ばれたフライアッシュを含む
セメント性組成物と一緒に使用する混合材（ａｄｍｉｘ
ｔｕｒｅ、添加混合物）を提供する。The invention further comprises an alkali metal salt of a hydroxycarboxylic acid and a fly ash selected from a mixture of the hydroxycarboxylic acid and a compound selected from the group consisting of alkali carbonates, bicarbonates and hydroxides. Admixtures for use with cementitious compositions (admix
true, an admixture).
【０００７】「セメント性材料」とは、水硬セメント、
すなわち水と混ざると硬化して硬質の生産品を形成する
アルミノ珪酸カルシウム塩を含む材料を意味する。その
ような材料の最も普通タイプは、ポルトランド・セメン
トであり、これは本発明の目的のために好ましいセメン
ト性材料である。しかし、高アルミナセメントも使用し
てもよい。"Cementitious material" means hydraulic cement,
That is, it means a material containing a calcium aluminosilicate that hardens when mixed with water to form a hard product. The most common type of such material is Portland cement, which is the preferred cementitious material for the purposes of the present invention. However, high alumina cement may also be used.
【０００８】セメント性材料は、それ自体はセメント性
はなく最終的生産品の硬化に貢献できる他の原料を含ん
でいてもよい。これらの例はさまざまな自然のおよび人
工のポゾランである。The cementitious material may include other ingredients that are not cementitious in their own right and can contribute to the hardening of the final product. Examples of these are various natural and artificial pozzolans.
【０００９】本発明の組成物において使用されるフライ
アッシュは、クラスＣフライアッシュだけではないが、
酸化カルシウム含有量が１５−４５重量％、好ましくは
２５−３０重量％であるべきである。酸化カルシウム含
有量が１５重量％より低いフライアッシュを含む組成物
は、少なくとも１５％酸化カルシウムを含むフライアッ
シュのような優れた結果を与えない。The class C fly ash is not the only fly ash used in the composition of the present invention,
The calcium oxide content should be 15-45% by weight, preferably 25-30% by weight. Compositions containing fly ash with a calcium oxide content below 15% by weight do not give as good results as fly ash with at least 15% calcium oxide.
【００１０】第３の成分は、ヒドロキシカルボン酸であ
る。使用され得る酸の中にクエン酸、リンゴ酸、マロン
酸、グリコール酸およびグリオキシル酸がある。The third component is a hydroxycarboxylic acid. Among the acids that can be used are citric acid, malic acid, malonic acid, glycolic acid and glyoxylic acid.
【００１１】第４の成分は、アルカリ金属イオン、好ま
しくはナトリウムまたはカリウムの水溶性源である。ア
ルカリイオンはヒドロキシカルボン酸に対するイオンの
モル比が０．５：１から１．５：１、好ましくは０．
６：１−１：１になるように存在するのが好ましい。源
は水中で塩基性溶液を生ずるアルカリ金属の水溶性化合
物であることができ、特に炭酸塩、重炭酸塩および水酸
化物が有用である。The fourth component is a water-soluble source of alkali metal ions, preferably sodium or potassium. The alkali ions have a molar ratio of ions to hydroxycarboxylic acid of 0.5: 1 to 1.5: 1, preferably 0.1.
It is preferably present in a ratio of 6: 1-1: 1. The source can be a water-soluble compound of an alkali metal which produces a basic solution in water, especially carbonates, bicarbonates and hydroxides being useful.
【００１２】別法のより好まれる発明の具体化において
は、ヒドロキシカルボン酸のアルカリ金属塩が使用さ
れ、これはこの発明の目的の場合、成分（ｃ）および
（ｄ）の組合せであると考えられる。特に有用な原料
は、クエン酸三カリウムおよび三ナトリウムである。In an alternative, more preferred embodiment of the invention, an alkali metal salt of a hydroxycarboxylic acid is used, which for the purposes of this invention is considered to be a combination of components (c) and (d). Be done. Particularly useful raw materials are tripotassium and trisodium citrate.
【００１３】セメント性材料＋フライアッシュ＋塩の全
体に対する重量割合として示されるこれら４つの原料の
比率は、成分（ｃ）および（ｄ）の組合せとして用いら
れるときもしくはヒドロキシカルボン酸およびアルカリ
金属イオン源が別々の化合物、理論的にはこの塩の割合
を与えるために十分な化合物（以下、「塩」という語は
両方の可能性を含むのに用いられる）であるとき、７０
−８０％のフライアッシュ、２０−２７％のセメント性
材料および０．５−４％の塩である。それぞれのより好
ましい割合は、７１−７３％のアッシュ、２５−２６％
のセメント性材料および２．５−３．５％の塩である。The ratio of these four raw materials, expressed as a weight ratio of cementitious material + fly ash + salt to the total, is such that when used as a combination of components (c) and (d) or a source of hydroxycarboxylic acid and alkali metal ion. Is a separate compound, theoretically sufficient to give a proportion of this salt (hereinafter the term “salt” is used to include both possibilities),
-80% fly ash, 20-27% cementitious material and 0.5-4% salt. The more preferable ratio of each is 71-73% ash, 25-26%
Cementitious material and 2.5-3.5% salt.
【００１４】上に述べられた必須の原料に他の当技術で
認識された原料を加えてもよい。最も普通の他の原料は
コンクリートの骨材であり、普通は砂である。最も有用
な組成物はたいてい組成物の重量の５０から８０％の範
囲の砂を含む。既に知られた（ＡＳＴＭ Ｃ１２５に定
義されるような）混合材、例えばリグノスルホン酸塩、
ナフタリンスルホン酸ホルムアルデヒド縮合物およびグ
ルコヘプタトナートを当業界で認められた量で使用する
ことができる。本発明の驚くべき特徴は、従来のセメン
ト性組成物において遅延剤として知られるこれら混合材
の多くが、本発明の組成物には遅延作用を及ぼさないと
いうことである。Other art-recognized ingredients may be added to the above mentioned essential ingredients. The most common other source is concrete aggregate, usually sand. The most useful compositions usually contain sand in the range of 50 to 80% by weight of the composition. Already known admixtures (as defined in ASTM C125), eg lignosulphonates,
Naphthalene sulfonic acid formaldehyde condensate and glucoheptatonate can be used in art-recognized amounts. A surprising feature of the present invention is that many of these admixtures, known as retarders in conventional cementitious compositions, do not have a retarding effect on the compositions of the present invention.
【００１５】別の成分としては、非水硬性ガラス状珪酸
塩、シリカヒューム、ライス・ハル（もみ）アッシュ、
沈澱したシリカなどがあり得る。建設業において使用す
るのに適当な繊維もこの発明のセメント性組成物に加え
ることができる。さらに有用な成分は、ラテックスおよ
び同様な重合体の変性剤である。Other components include non-hydraulic glassy silicate, silica fume, rice hull (fir) ash,
There may be precipitated silica and the like. Fibers suitable for use in the construction industry can also be added to the cementitious composition of this invention. Further useful components are latex and similar polymeric modifiers.
【００１６】特に有用でより好まれる発明の具体化にお
いて、組成物は硼酸塩イオン源も含む。驚くべきことに
これは、これら組成物の硬化の間かなりの程度のコント
ロールを与えることがわかっている。どの硼酸塩イオン
源でも有用である。硼砂は便利なものの１つである。硼
酸塩イオンは、好ましくは（ａ）＋（ｂ）＋（ｃ）＋
（ｄ）に存在し得る混合材＋骨材を加えた全重量に対し
て０．５−３．０重量％の割合で加えられる。In a particularly useful and preferred embodiment of the invention, the composition also comprises a source of borate ions. Surprisingly, this has been found to provide a considerable degree of control during curing of these compositions. Any borate ion source is useful. Borax is one of the convenient things. The borate ion is preferably (a) + (b) + (c) +
It is added in a proportion of 0.5-3.0% by weight, based on the total weight of the mixture + aggregate that may be present in (d).
【００１７】本発明の組成物は多くの建設業の態様にお
いて有用である。例えば、コンクリート、モルタルおよ
び上塗りとして使われる。これらはすばやく硬化し硬く
不浸透性の塊をあたえ、高い早期強度および高い最終強
度を示す。また優れた凍結・解凍耐久性をもっている。The compositions of the present invention are useful in many construction industry aspects. For example, used as concrete, mortar and topcoat. They set rapidly and give hard, impermeable masses, exhibiting high early strength and high ultimate strength. It also has excellent freeze / thaw durability.
【００１８】この発明を、次の実施例を参照してさらに
説明するが、部は全て重量で示す。The invention will be further described with reference to the following examples, in which all parts are by weight.
【００１９】実施例１ 高性能モルタルは、次の原料を混ぜることによりつくら
れる。 ポルトランド・セメント １０．４部 クラスＣフライアッシュ（２５％ ＣａＯ） ２８．０部 クエン酸三カリウム １．６部 微細な砂 ６０．０部 水は全組成物の８．３重量％程度まで加える。試験結果
は次のとおりである。 流量％（５滴）（ＡＳＴＭ Ｃ２３０）： ８０ 硬化時間（ＡＳＴＭ Ｃ２６６）最初： ３．５分 最後： ５．０分 圧縮強度（ＡＳＴＭ Ｃ１０９） （２''（５ｃｍ）空気硬化） ２時間： ３３．５ｍＰａ ２４時間： ６５．０ｍＰａ ７日： ８５．０ｍＰａExample 1 A high performance mortar is made by mixing the following ingredients. Portland cement 10.4 parts Class C fly ash (25% CaO) 28.0 parts Tripotassium citrate 1.6 parts Fine sand 60.0 parts Water is added up to about 8.3% by weight of the total composition. .. The test results are as follows. Flow rate% (5 drops) (ASTM C230): 80 Cure time (ASTM C266) First: 3.5 minutes Last: 5.0 minutes Compressive strength (ASTM C109) (2 '' (5 cm) air cure) 2 hours: 33 0.5 mPa 24 hours: 65.0 mPa 7 days: 85.0 mPa
【００２０】実施例２ 高性能モルタルは、次の原料を混ぜることによりつくら
れる。 ポルトランド・セメント ８．６部 クラスＣフライアッシュ（２５％ ＣａＯ） ２４．８部 クエン酸三カリウム １．０部 硼砂 １．０部 硫酸ナトリウム １．５部 微細な砂 ６３．０部 水は全組成物の重量の８．３％程度まで加え、試験結果
は次のとおりである（実施例１に述べられるように測量
される）。 流量％ ７０％ 硬化時間；最初： ２８分 最後： ３０分 圧縮強度 ２時間： １８．６ｍＰａ ２４時間： ５１．０ｍＰａ ７日： ７１．０ｍＰａExample 2 A high performance mortar is made by mixing the following ingredients. Portland cement 8.6 parts Class C fly ash (25% CaO) 24.8 parts Tripotassium citrate 1.0 part Borax 1.0 part Sodium sulfate 1.5 parts Fine sand 63.0 parts Water is all Additions up to about 8.3% of the weight of the composition and the test results are as follows (measured as described in Example 1): Flow rate% 70% Curing time; First: 28 minutes Last: 30 minutes Compressive strength 2 hours: 18.6 mPa 24 hours: 51.0 mPa 7 days: 71.0 mPa
───────────────────────────────────────────────────── 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 14:06） Ｂ 2102−4Ｇ (72)発明者 デイビッド・エフ・ファクター アメリカ合衆国44234オハイオ州ヒラム、 ステイト・ルート88、ウェイクフィール ド・ロード6680番 (72)発明者 フレデリック・ディ・キニー アメリカ合衆国44147オハイオ州ブロード ビュー・ハイツ、ツイン・オークス・ドラ イブ7956番 (72)発明者 セレスト・エル・マッカレン アメリカ合衆国15090ペンシルベニア州ウ ェックスフォード、ミンゴ・ロード260番 (72)発明者 アンドレア・エム・ヤング アメリカ合衆国90277カリフォルニア州レ ドンド・ビーチ、ノース・ジャニタ・アベ ニュー517番 アパートメント・ナンバー ２─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical indication C04B 14:06) B 2102-4G (72) Inventor David F Factor United States 44234 Hiram, Ohio, USA State Route 88, Wakefield Road # 6680 (72) Inventor Frederick Di Kinney United States 44147 Twin Oaks Drive # 7956 (72) Broadview Heights, Ohio United States Celest El McAllen United States 15090 Mingo Road, 260, Mingo Road, Wexford, Pennsylvania (72) Inventor Andrea M Young United States 90277 North Janita Avenue, Redondo Beach, Californiaー 517 apartment number 2
Claims (5)
の酸化カルシウム含量をもつフライアッシュ； （ｃ）ヒドロキシカルボン酸；および （ｄ）アルカリ金属イオンの水溶性源 を含むセメント性組成物。1. A cementitious material; (b) 15-45% by weight, preferably 25-30% by weight.
A cementitious composition comprising: (c) a hydroxycarboxylic acid; and (d) a water-soluble source of an alkali metal ion.
ン酸のモル比が、０．５：１−１．５：１、好ましくは
０．６：１−１：１である、請求項１記載のセメント性
組成物。2. Cementitiousness according to claim 1, wherein the molar ratio of alkali metal ion to hydroxycarboxylic acid is 0.5: 1 to 1.5: 1, preferably 0.6: 1-1: 1. Composition.
属イオン源が、ヒドロキシカルボン酸のアルカリ金属塩
によって供給される、請求項１記載のセメント性組成
物。3. The cementitious composition according to claim 1, wherein the source of hydroxycarboxylic acid and alkali metal ion is provided by an alkali metal salt of hydroxycarboxylic acid.
ロキシカルボン酸＋アルカリ金属イオン源（ヒドロキシ
カルボン酸＋金属オキシカルボン塩はヒドロキシカルボ
ン酸金属塩の当量として計算される）の合計に対する成
分の重量割合は、７０−８０％、好ましくは７１−７３
％のフライアッシュ、２０−２７％、好ましくは２５−
２６％のセメント性材料および０．５−４％、好ましく
は２．５−３．５％の塩である、請求項１記載のセメン
ト性組成物。4. The weight ratio of the components to the total of the cementitious material + fly ash + hydroxycarboxylic acid + alkali metal ion source (hydroxycarboxylic acid + metal oxycarboxylic acid salt is calculated as the equivalent of hydroxycarboxylic acid metal salt) is , 70-80%, preferably 71-73
% Fly ash, 20-27%, preferably 25-
Cementitious composition according to claim 1, which is 26% cementitious material and 0.5-4%, preferably 2.5-3.5% salt.
（ｄ）＋存在し得る混合材＋骨材の０．５−３．０重量
％の範囲の硼酸塩イオンを含む、請求項１−４の何れか
１項記載のセメント性組成物。5. The composition is (a) + (b) + (c) +
Cementitious composition according to any one of claims 1-4, comprising (d) + possible admixture + borate ions in the range of 0.5-3.0% by weight of the aggregate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80078691A | 1991-11-27 | 1991-11-27 | |
| US800786 | 1991-11-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05229864A true JPH05229864A (en) | 1993-09-07 |
| JP3317529B2 JP3317529B2 (en) | 2002-08-26 |
Family
ID=25179357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31685492A Expired - Fee Related JP3317529B2 (en) | 1991-11-27 | 1992-11-26 | Cementitious composition |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3317529B2 (en) |
| AU (1) | AU656440B2 (en) |
| CH (1) | CH684476A5 (en) |
| DE (1) | DE4239062A1 (en) |
| FR (1) | FR2684096B1 (en) |
| IT (1) | IT1263029B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015514675A (en) * | 2012-04-27 | 2015-05-21 | ユナイテッド・ステイツ・ジプサム・カンパニー | Dimensionally stable geopolymer compositions and methods |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| US9656916B2 (en) | 2012-04-27 | 2017-05-23 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629048A (en) * | 1994-09-20 | 1997-05-13 | Sandoz Ltd. | Rapid setting cementitious compositions and method |
| US5591259A (en) * | 1994-09-20 | 1997-01-07 | Sandoz Ltd. | Rapid setting cementitious compositions and method |
| CA2158501C (en) * | 1994-09-20 | 2008-11-04 | Stephen A. Farrington | Rapid-setting cementitious composition |
| DE19543121A1 (en) * | 1995-11-18 | 1997-05-22 | Georg Badum | Manufacture of dry mortar from burnt lime and additives |
| FR2990939B1 (en) * | 2012-05-24 | 2014-12-05 | Lafarge Sa | IMPROVING THE MECHANICAL STRENGTHS OF A HYDRAULIC COMPOSITION |
| EP3070065A1 (en) * | 2015-03-17 | 2016-09-21 | HeidelbergCement AG | Retarder mixture for alkali activated binder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2443438A2 (en) * | 1978-04-24 | 1980-07-04 | Partners Ltd | CEMENT COMPOSITIONS |
| US4313763A (en) * | 1980-02-12 | 1982-02-02 | Turpin Raymond C Jun | Cement compositions containing self-setting pozzolans |
| US4318744A (en) * | 1980-06-06 | 1982-03-09 | W. R. Grace & Co. | Strength enhancing admixture for concrete compositions |
| SU1152947A1 (en) * | 1982-05-05 | 1985-04-30 | Тульский Ордена Трудового Красного Знамени Политехнический Институт | Method of preparing concrete mix |
| US4842649A (en) * | 1987-10-02 | 1989-06-27 | Pyrament, Inc. | Cement composition curable at low temperatures |
| AU615501B2 (en) * | 1987-12-11 | 1991-10-03 | Lone Star Industries, Inc. | Hydraulic cement and composition employing the same |
-
1992
- 1992-11-18 CH CH3538/92A patent/CH684476A5/en not_active IP Right Cessation
- 1992-11-20 DE DE4239062A patent/DE4239062A1/en not_active Withdrawn
- 1992-11-25 AU AU29627/92A patent/AU656440B2/en not_active Ceased
- 1992-11-25 IT IT92RM845 patent/IT1263029B/en active IP Right Grant
- 1992-11-26 JP JP31685492A patent/JP3317529B2/en not_active Expired - Fee Related
- 1992-11-26 FR FR9214354A patent/FR2684096B1/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015514675A (en) * | 2012-04-27 | 2015-05-21 | ユナイテッド・ステイツ・ジプサム・カンパニー | Dimensionally stable geopolymer compositions and methods |
| US9643888B2 (en) | 2012-04-27 | 2017-05-09 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9656916B2 (en) | 2012-04-27 | 2017-05-23 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9890082B2 (en) | 2012-04-27 | 2018-02-13 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US10221096B2 (en) | 2012-04-27 | 2019-03-05 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US10392307B2 (en) | 2012-04-27 | 2019-08-27 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US10597327B2 (en) | 2012-04-27 | 2020-03-24 | United States Gypsum Company | Dimensionally stable geopolymer composition and method |
| US9624131B1 (en) | 2015-10-22 | 2017-04-18 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
| US10308552B2 (en) | 2015-10-22 | 2019-06-04 | United States Gypsum Company | Freeze-thaw durable geopolymer compositions and methods for making same |
Also Published As
| Publication number | Publication date |
|---|---|
| ITRM920845A0 (en) | 1992-11-25 |
| FR2684096A1 (en) | 1993-05-28 |
| CH684476A5 (en) | 1994-09-30 |
| ITRM920845A1 (en) | 1994-05-25 |
| DE4239062A1 (en) | 1993-06-03 |
| JP3317529B2 (en) | 2002-08-26 |
| IT1263029B (en) | 1996-07-23 |
| AU2962792A (en) | 1993-06-03 |
| FR2684096B1 (en) | 1995-08-25 |
| AU656440B2 (en) | 1995-02-02 |
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