JPH1017355A - High slump concrete and its production - Google Patents

High slump concrete and its production

Info

Publication number
JPH1017355A
JPH1017355A JP8191680A JP19168096A JPH1017355A JP H1017355 A JPH1017355 A JP H1017355A JP 8191680 A JP8191680 A JP 8191680A JP 19168096 A JP19168096 A JP 19168096A JP H1017355 A JPH1017355 A JP H1017355A
Authority
JP
Japan
Prior art keywords
cement
glass
concrete
reducing agent
waste sand
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
Application number
JP8191680A
Other languages
Japanese (ja)
Inventor
Seiji Nakamura
聖二 中村
Kenichi Aizawa
賢一 会沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DENKA GRACE KK
Original Assignee
DENKA GRACE KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DENKA GRACE KK filed Critical DENKA GRACE KK
Priority to JP8191680A priority Critical patent/JPH1017355A/en
Publication of JPH1017355A publication Critical patent/JPH1017355A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2103/00Function or property of ingredients for mortars, concrete or artificial stone
    • C04B2103/30Water reducers, plasticisers, air-entrainers, flow improvers
    • C04B2103/302Water reducers

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

PROBLEM TO BE SOLVED: To improve flowability and flow stability of the concrete, to remarkably enhance its compressive strength after hardening, to effectively utilize the glass waste sand and accordingly, to provide the concrete excellent in flowability and in compressive strength after hardening by mixing glass waste sand conventionally disposed as industrial waste, into high slump concrete as a part of cement or a fine powdery extender filler of the concrete. SOLUTION: In this production, glass waste sand which is waste used for polishing patterned glass such as wired or wire glass, is added to any of cement, aggregate, water and a superplasticizer and all these material are mixed together to produce the objective high slump concrete. At this time, a superplasticizer based on a polycarboxylic acid contg. >=60wt.% oxyethylene groups is preferably used. Further, water is added to a fine-powdery material, preferably to the glass waste sand to form a slurry and thereafter, the slurry is mixed with cement.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明が属する技術分野】本発明は、ガラスの研磨、特
に網入り、線入り等の板ガラスを研磨するに際に使用し
たガラス研磨用珪砂の廃材(以下、ガラス廃砂とする)
を、セメントの一部として利用して得られるハイスラン
プコンクリートに関する。更に、安定した高流動性と硬
化後に高圧縮強度が得られるハイスランプコンクリート
の製法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste of silica sand for glass polishing used for polishing glass, particularly for polishing sheet glass having a net or a wire (hereinafter referred to as glass waste sand).
Is used as a part of cement for high slump concrete. Further, the present invention relates to a method for producing high slump concrete capable of obtaining stable high fluidity and high compressive strength after curing.

【0002】[0002]

【従来の技術】鉄筋を配した狭窄部位等に緻密にコンク
リートを充填する細密充填など流動性を要求される用途
には、ハイスランプコンクリートが好ましく使用され
る。ハイスランプコンクリートを混練するにあたり、高
性能減水剤または高性能AE剤(以下、高性能減水剤と
する)を配合することによりスランプの向上を図ってい
る。しかしながら、高性能減水剤のみに依存すると柔ら
かさに対する抵抗性が失われ、材料分離を起こし使用に
耐えないコンクリートとなる。そのため流動性に見合っ
た微粉末の増加、例えばセメントの増量や高炉スラグ、
フライアッシュ、石灰石粉などの微粉末をセメント増量
材の一部として配合することにより、安定した高流動性
を得る方法が用いられている。
2. Description of the Related Art High-slump concrete is preferably used for applications requiring fluidity, such as fine filling, in which concrete is densely filled in a constricted area where reinforcing bars are arranged. When kneading high slump concrete, slump is improved by blending a high performance water reducing agent or a high performance AE agent (hereinafter, referred to as a high performance water reducing agent). However, relying solely on the high-performance water reducing agent loses its resistance to softness, resulting in concrete that is unusable due to material separation. Therefore, the increase of fine powder in accordance with the fluidity, such as the increase of cement and blast furnace slag,
A method of obtaining stable high fluidity by blending fine powder such as fly ash or limestone powder as a part of a cement filler is used.

【0003】[0003]

【発明が解決しようとする課題】ガラス廃砂はガラスの
研磨工程から排出され、用途がなく産業廃棄物として処
理される廃材である。一方、ハイスランプコンクリート
にあっては、セメントの一部に代えて高炉スラグ、フラ
イアッシュ、石灰石粉などの微粉末を配合することが一
般に行われているが、この微粉末としてガラス廃砂を使
用するならば、廃棄物を有効利用できると共に、ハイス
ランプコンクリート自体の単価を低下させることができ
る。そこで、微粉末としてガラス廃砂を使用しながら他
の高価な微粉末を使用した場合と遜色ないハイスランプ
コンクリートを得ることが望ましい。
The glass waste sand is a waste material discharged from the glass polishing process and has no use and is treated as industrial waste. On the other hand, in high-slump concrete, fine powder such as blast furnace slag, fly ash, and limestone powder is commonly used instead of a part of cement, but glass waste sand is used as this fine powder. If so, the waste can be effectively used and the unit price of the high-slump concrete itself can be reduced. Therefore, it is desirable to obtain high-slump concrete that is comparable to the case of using other expensive fine powder while using glass waste sand as the fine powder.

【0004】更に、ハイスランプコンクリートは、流動
性が高いため一見硬化後の圧縮強度に不安を感じるが、
硬化後に高強度が得られると共に、混練した状態で、材
料分離が生じることなく安定したフローが得られるハイ
スランプコンクリートが求められていた。
[0004] Furthermore, high-slump concrete has high fluidity, so at first glance it is uneasy about the compressive strength after hardening.
There has been a demand for a high-slump concrete capable of obtaining high strength after hardening and capable of obtaining a stable flow without material separation in a kneaded state.

【0005】[0005]

【課題を解決するための手段】本発明は上記課題を解決
することを目的とし、その構成は、セメント、骨材、水
及び高性能減水剤に、ガラス廃砂を添加混練してなり、
好ましくは高性能減水剤が、60重量%以上のオキシエ
チレン基を有するポリカルボン酸系減水剤であることを
特徴とし、更に、微粉末、好ましくはガラス廃砂に、水
を加えてスラリー状にした後、セメントを配合すること
を特徴とする。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and the structure of the present invention is obtained by adding and kneading glass waste sand to cement, aggregate, water and a high-performance water reducing agent.
Preferably, the high-performance water reducing agent is a polycarboxylic acid-based water reducing agent having 60% by weight or more of oxyethylene groups, and further, water is added to fine powder, preferably glass waste sand, to form a slurry. After that, cement is compounded.

【0006】本発明は、ガラス工場から排出される廃棄
物であるガラス廃砂が、珪砂を主成分とする硬質で微細
な粉末であり、しかも各粒子は研磨の結果、角がとれて
ほぼ球形になっているため、ハイスランプコンクリート
のセメントの一部に代えて配合する微粉末として使用し
得ることを見出して完成したものである。ガラス廃砂を
配合することにより、従来のスラグを使用したハイスラ
ンプコンクリートに比して遜色のない流動性が得られ、
コンクリートの材料分離が短時間後に観察されるような
ことはなく安定していた。更に、硬化後も比較的高い圧
縮強度が得られた。このような結果が得られる理由は、
ガラス廃砂が微細で球形であるばかりでなく、ガラス廃
砂固有の成分の相乗効果によるものと推測する。
According to the present invention, the glass waste sand, which is a waste discharged from a glass factory, is a hard and fine powder mainly composed of silica sand. Thus, the present invention has been completed by finding that it can be used as a fine powder to be used instead of a part of the cement of high slump concrete. By mixing glass waste sand, fluidity comparable to high slump concrete using conventional slag is obtained,
The material separation of the concrete was stable without being observed after a short time. Furthermore, a relatively high compressive strength was obtained even after curing. The reason for this result is that
It is presumed that not only the glass waste sand is fine and spherical, but also due to a synergistic effect of components inherent in the glass waste sand.

【0007】更に、より優れたハイスランプコンクリー
トを得るためには、原料を混練するにあたり、微粉末を
前もって水でスラリー化しておき、これを最終的にセメ
ントと混練することにより同一材料を同一量使用しなが
らはるかに優れた流動性と安定性が得られ、硬化後も圧
縮強度が顕著に向上している事実を発見し、本発明を完
成するに至った。
Further, in order to obtain a better high-slump concrete, when kneading the raw materials, a fine powder is slurried in advance with water, and this is finally kneaded with cement to obtain the same amount of the same material. The fact that much better fluidity and stability was obtained during use, and the fact that the compressive strength was significantly improved even after curing was discovered, and the present invention was completed.

【0008】[0008]

【発明の実施の形態】本発明におけるハイスランプコン
クリートとは、通常のスランプコーンで測定したスラン
プが18cm以上で、無振動打設が可能で、一般にスラ
ンプフローで表される高流動コンクリートも指称する。
セメント、骨材、及び水を加え、更に高性能減水剤を添
加して混練して製造される。減水剤としてはリグニン系
減水剤では充分な流動性が得られず、高性能減水剤を必
要とする。ハイスランプコンクリートに配合する微粉末
としては、本発明のガラス廃砂の他に、セメントの増量
又は高炉スラグ、フライアッシュ、石灰石粉などが挙げ
られる。一般にブレーン比表面積3000cm2 /g以
上のSiO2 及びカルシウム分を含む微粉末が好まし
く、セメントの一部に代えてハイスランプコンクリート
に配合し、流動性及び流動性の安定化に寄与する物質で
ある。
BEST MODE FOR CARRYING OUT THE INVENTION The high slump concrete in the present invention also refers to a high-fluid concrete generally having a slump flow of 18 cm or more measured with a normal slump cone and capable of non-vibration casting. .
It is manufactured by adding cement, aggregate, and water, and further adding a high-performance water reducing agent and kneading. As a water reducing agent, a lignin-based water reducing agent cannot provide sufficient fluidity and requires a high-performance water reducing agent. Examples of the fine powder to be added to the high slump concrete include, in addition to the glass waste sand of the present invention, an increase in the amount of cement or blast furnace slag, fly ash, limestone powder and the like. In general, a fine powder containing SiO 2 and a calcium component having a Blaine specific surface area of 3,000 cm 2 / g or more is preferable, and is a substance that contributes to stabilization of fluidity and fluidity by being mixed with high-slump concrete instead of a part of cement. .

【0009】網入りガラス、線入りガラス、模様ガラス
等を製造する際には、固化したガラス面にSiO2 を主
成分とする硬質の粒子を吹き付けて研磨する。この粒子
は使用を繰返すことにより次第にすり減り、粒径が小さ
くなり、角もとれて球形に近づきガラス研磨の効果が減
少する。このような小さくなった粒子及びガラスの研磨
粉を研磨材から除去し、新しい研磨材を補充している。
本発明におけるガラス廃砂とは、上記の工程で小さくな
って除去された粒子及びガラスの研磨粉を含有する成分
であり、全固形分に対しSiO2 70%以上、好ましく
は80%以上を含有し、ガラス工場から常時大量に排出
され、安定して入手することができる。ガラス廃砂の使
用量はセメントと微粉末の合計に対し、5〜60%、好
ましくは10〜50%である。5%未満ではガラス廃砂
配合の効果が発現されず、60%を越えると硬化体の圧
縮強度が低下する。
When producing netted glass, lined glass, patterned glass, and the like, hardened particles mainly composed of SiO 2 are sprayed onto the solidified glass surface and polished. The particles are gradually worn out by repeated use, the particle size becomes smaller, the shape becomes closer to a sphere, and the effect of glass polishing is reduced. The abrasive particles of such reduced particles and glass are removed from the abrasive and new abrasive is replenished.
The glass waste sand in the present invention is a component containing the particles and the polishing powder of the glass which have been reduced and removed in the above process, and contain 70% or more, preferably 80% or more of SiO 2 based on the total solid content. However, they are constantly discharged in large quantities from glass factories and can be obtained stably. The amount of glass waste sand used is 5 to 60%, preferably 10 to 50%, based on the total of cement and fine powder. If it is less than 5%, the effect of mixing the glass waste sand will not be exhibited, and if it exceeds 60%, the compressive strength of the cured product will decrease.

【0010】ガラス廃砂の1例を挙げると、下記の品質
を有する。 pH 粒度 真比重 組成 ───────────────────────────── 9〜12 10±5μm 2.6 SiO2 分 メジアン径 87±3%
One example of glass waste sand has the following qualities. pH particle size True specific gravity composition 9 9-12 10 ± 5 μm 2.6 SiO 2 minutes Median diameter 87 ± 3%

【0011】また、ガラス廃砂の組成は下記の通りであ
る。 SiO2 …… 87±3% Al2 3 …… 3±1% Fe2 3 …… 1.5±0.5% CaO …… 2±0.5% MgO …… 0.5±0.2% K2 O+Na2 O …… 3±2% TiO2 …… 0.3±0.3% Ig・loss …… 1.5±1%
The composition of the glass waste sand is as follows. SiO 2 8787 ± 3% Al 2 O 3 33 ± 1% Fe 2 O 3 1.51.5 ± 0.5% CaO 22 ± 0.5% MgO 0.50.5 ± 0. 2% K 2 O + Na 2 O 3 ± 2% TiO 2 0.3 ± 0.3% Ig · loss 1.5 ± 1%

【0012】高性能減水剤は、ナフタリンスルホン酸系
高性能減水剤をはじめ種々の減水剤が市販されている
が、ポリカルボン酸系高性能減水剤以外の減水剤では、
一応のフロー値を得ることはできても安定性が悪く、ポ
リカルボン酸系高性能減水剤が特に優れている。ポリカ
ルボン酸系高性能減水剤としては、比較的多くのカルボ
キシル基を有するモノマーの重合体であり、中でもポリ
オキシエチレン基を有する重合体が特に好ましい。更に
ポリオキシエチレン基の重量比が全重合体の重量の60
重量%以上を占めるポリカルボン酸系減水剤は優れた効
果を有する。このようなポリカルボン酸としては、例え
ば、次式の(1)、(2)及び(3)の重合体を挙げる
ことができる。
As the high-performance water reducing agent, various water reducing agents including a naphthalenesulfonic acid-based high-performance water reducing agent are commercially available.
Although a certain flow value can be obtained, the stability is poor, and a polycarboxylic acid-based high-performance water reducing agent is particularly excellent. The polycarboxylic acid-based high-performance water reducing agent is a polymer of a monomer having a relatively large number of carboxyl groups, and among them, a polymer having a polyoxyethylene group is particularly preferable. Furthermore, the weight ratio of the polyoxyethylene groups is 60% of the weight of the total polymer.
The polycarboxylic acid-based water reducing agent occupying at least% by weight has an excellent effect. Examples of such a polycarboxylic acid include polymers represented by the following formulas (1), (2) and (3).

【0013】[0013]

【化1】 Embedded image

【0014】ポリカルボン酸系高性能減水剤の使用量
は、セメントと微粉末の合計100重量部に対し0.01
〜1.0重量部、好ましくは0.05〜0.7重量部であ
り、一般に10〜30重量%の水溶液として使用され
る。
The amount of the polycarboxylic acid-based high-performance water reducing agent to be used is 0.01 to 100 parts by weight of the total of cement and fine powder.
To 1.0 part by weight, preferably 0.05 to 0.7 part by weight, generally used as an aqueous solution of 10 to 30% by weight.

【0015】本発明においては、微粉末に高性能減水剤
と水を加えてスラリー状にした状態でセメント及び骨材
と配合すると、フロー値が向上し、硬化体の圧縮強度の
顕著な向上が認められる。また、微粉末に高性能減水剤
と水を加えた状態で保存し、使用直前にセメントを加え
て混練しても同様の効果が得られる。微粉末はガラス廃
砂が好ましいが、高炉スラグ、フライアッシュ、石灰石
粉等、他の微粉末との併用であっても効果を有する。
In the present invention, when a high-performance water reducing agent and water are added to fine powder to form a slurry and are mixed with cement and aggregate, the flow value is improved, and the compressive strength of the cured product is significantly improved. Is recognized. Further, the same effect can be obtained by storing the fine powder with the high-performance water reducing agent and water added thereto and adding and kneading the cement immediately before use. The fine powder is preferably glass waste sand, but the effect is obtained even when used in combination with other fine powder such as blast furnace slag, fly ash, limestone powder and the like.

【0016】[0016]

【実施例】以下の実施例における使用材料は次の通りで
ある。 セメント:普通ポルトランドセメント(秩父小野田セメ
ント) 比重3.16 ガラス廃砂:SiO2 87±3%、水分16〜18%を
含有し、ブレーン比表面積7000〜8000cm2
gの原料を用い、105℃で水分をほぼ完全に 除去し
た微粉末。 スラグ:エスメント400(新日本製鐡株式会社製)、
ブレーン値4000cm2 /g 石灰石粉:炭酸カルシウム(上越鉱業社製)ブレーン値
3500cm2 /g 混和剤:高性能減水剤:化学式(1)の構造式を有し、
m=33の重合体の20%水溶液 フロー値の測定は、JIS R 5201 セメントの物理試
験方法に準拠したフローコーンを用い、引き上げた時の
無振動による広がりを測定した。またスランプフロー
は、スランプコーンによるコンクリートの広がりを測定
した。
EXAMPLES The materials used in the following examples are as follows. Cement: Normal Portland cement (Chichibu Onoda cement) Specific gravity 3.16 Glass waste sand: containing 87 ± 3% of SiO 2 and 16 to 18% of water, and has a Blaine specific surface area of 7000 to 8000 cm 2 /
Fine powder obtained by removing water almost completely at 105 ° C using g raw material. Slag: Esment 400 (Nippon Steel Corporation),
Blaine value 4000 cm 2 / g Limestone powder: calcium carbonate (manufactured by Joetsu Mining Co., Ltd.) Blaine value 3500 cm 2 / g Admixture: high-performance water reducing agent: having the structural formula of chemical formula (1),
The flow value of a 20% aqueous solution of a polymer having m = 33 was measured by using a flow cone conforming to the JIS R 5201 cement physical test method, and measuring the spread due to no vibration when pulled up. The slump flow was measured by measuring the spread of concrete caused by a slump cone.

【0017】実施例1 セメント、細骨材、水及び高性能減水剤を表1に示す配
合で、JISモルタルミキサを用い全材料を投入し低速
で2分間混練ぜた。実験No.1〜3はセメント単独及
び高炉スラグの微粉末を用いた配合である。実験No.
4〜8は微粉末としてガラス廃砂を配合したものであ
り、その中、実験No.4〜6はガラス廃砂を粉体とし
て使用し、実験No.7及び8はスラリー化して使用し
た。各実験のフロー値、モルタルの状態観察及び標準養
生による圧縮強度を表1に併記した。表1中、ガラス廃
砂と記載すべき箇所を廃砂と略記した。(表2も同様)
Example 1 Cement, fine aggregate, water, and a high-performance water reducing agent were mixed in the composition shown in Table 1 using a JIS mortar mixer and kneaded at a low speed for 2 minutes. Experiment No. Nos. 1 to 3 are blends using cement alone and fine powder of blast furnace slag. Experiment No.
Nos. 4 to 8 are those obtained by blending glass waste sand as fine powder. Experiment Nos. 4 to 6 used glass waste sand as powder. 7 and 8 were used in the form of a slurry. Table 1 also shows the flow value of each experiment, the state observation of the mortar, and the compressive strength by standard curing. In Table 1, portions to be described as glass waste sand are abbreviated as waste sand. (Same for Table 2)

【0018】[0018]

【表1】 [Table 1]

【0019】実施例2 表2に示す配合を用い、50リットルのパン型強制ミキ
サーで練り量30リットルを90秒で練混ぜ、高流動コ
ンクリートを得た。試験結果としてスランプフロー、空
気量及び標準養生による圧縮強度を表2に併記した。
Example 2 Using the composition shown in Table 2, a 30-liter kneading amount was kneaded in a 50-liter pan-type forced mixer for 90 seconds to obtain a highly fluid concrete. Table 2 also shows the slump flow, air volume and compressive strength by standard curing as test results.

【0020】[0020]

【表2】 [Table 2]

【0021】[0021]

【発明の効果】従来、産業廃棄物として処理されていた
ガラス廃砂を、ハイスランプコンクリートのセメントの
一部、又は増量微粉末として配合する本発明により、ハ
イスランプコンクリートの流動性及び流動安定性が改良
され、更に硬化後の圧縮強度も顕著に向上した。また、
微粉末を予め水及び高性能減水剤とスラリー化すること
によりハイスランプコンクリートの物性が顕著に向上し
た。
According to the present invention, glass waste sand which has been conventionally treated as industrial waste is blended as a part of cement of high slump concrete or as an increased fine powder, fluidity and flow stability of high slump concrete. And the compressive strength after curing was also significantly improved. Also,
By previously slurrying the fine powder with water and a high performance water reducing agent, the physical properties of high slump concrete were remarkably improved.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 C04B 24:26 ) 103:32 111:70 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification number Agency reference number FI Technical display location C04B 24:26) 103: 32 111: 70

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 セメント、骨材、水及び高性能減水剤
に、ガラス廃砂を添加混練してなるハイスランプコンク
リート。
1. High slump concrete obtained by adding and kneading glass waste sand to cement, aggregate, water and a high-performance water reducing agent.
【請求項2】 高性能減水剤が、ポリカルボン酸系減水
剤であることを特徴とする請求項1記載のハイスランプ
コンクリート。
2. The high-slump concrete according to claim 1, wherein the high-performance water reducing agent is a polycarboxylic acid-based water reducing agent.
【請求項3】 ポリカルボン酸系セメント減水剤が、6
0重量%以上のオキシエチレン基を有するポリカルボン
酸系セメント減水剤である請求項2記載のハイスランプ
コンクリート。
3. The polycarboxylic acid-based cement water reducing agent comprises 6
The high slump concrete according to claim 2, which is a polycarboxylic acid cement water reducing agent having 0% by weight or more of oxyethylene groups.
【請求項4】 微粉末に、水を加えてスラリー状にした
後、セメントを配合することを特徴とするセメント、骨
材、水、微粉末及び高性能減水剤を含有するハイスラン
プコンクリートの製法。
4. A method for producing high-slump concrete containing cement, aggregate, water, fine powder and a high-performance water reducing agent, characterized in that water is added to fine powder to form a slurry, and then cement is mixed. .
【請求項5】 微粉末が、ガラス廃砂であることを特徴
とする請求項4記載のハイスランプコンクリートの製
法。
5. The method for producing high slump concrete according to claim 4, wherein the fine powder is glass waste sand.
JP8191680A 1996-07-03 1996-07-03 High slump concrete and its production Pending JPH1017355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8191680A JPH1017355A (en) 1996-07-03 1996-07-03 High slump concrete and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8191680A JPH1017355A (en) 1996-07-03 1996-07-03 High slump concrete and its production

Publications (1)

Publication Number Publication Date
JPH1017355A true JPH1017355A (en) 1998-01-20

Family

ID=16278678

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8191680A Pending JPH1017355A (en) 1996-07-03 1996-07-03 High slump concrete and its production

Country Status (1)

Country Link
JP (1) JPH1017355A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055636A1 (en) * 1998-04-24 1999-11-04 Broughshire Limited A cementitious mixture
WO2001021542A1 (en) * 1999-09-21 2001-03-29 Nippon Nsc Limited Cement dispersant
WO2001021541A1 (en) * 1999-09-21 2001-03-29 Nippon Nsc Limited Cement dispersant
KR20010045071A (en) * 1999-11-02 2001-06-05 정영수 Concrete
JP2003286054A (en) * 2002-03-29 2003-10-07 Taiheiyo Cement Corp Glass aggregate and its manufacturing method
JP2004123458A (en) * 2002-10-03 2004-04-22 Taiheiyo Cement Corp Admixture for cements and composition of the same
US7775466B2 (en) 2004-12-16 2010-08-17 Empire Resource Recovery Llc Production of glass powder from waste glass, and products made using the same, especially concrete
CN115974477A (en) * 2022-12-20 2023-04-18 北京工业大学 Ultra-high performance concrete containing rare earth polishing powder waste and preparation method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999055636A1 (en) * 1998-04-24 1999-11-04 Broughshire Limited A cementitious mixture
US6514334B1 (en) 1998-04-24 2003-02-04 Broughshire Limited Cementitious mixture
WO2001021542A1 (en) * 1999-09-21 2001-03-29 Nippon Nsc Limited Cement dispersant
WO2001021541A1 (en) * 1999-09-21 2001-03-29 Nippon Nsc Limited Cement dispersant
KR20010045071A (en) * 1999-11-02 2001-06-05 정영수 Concrete
JP2003286054A (en) * 2002-03-29 2003-10-07 Taiheiyo Cement Corp Glass aggregate and its manufacturing method
JP2004123458A (en) * 2002-10-03 2004-04-22 Taiheiyo Cement Corp Admixture for cements and composition of the same
US7775466B2 (en) 2004-12-16 2010-08-17 Empire Resource Recovery Llc Production of glass powder from waste glass, and products made using the same, especially concrete
CN115974477A (en) * 2022-12-20 2023-04-18 北京工业大学 Ultra-high performance concrete containing rare earth polishing powder waste and preparation method thereof
CN115974477B (en) * 2022-12-20 2023-12-22 北京工业大学 Ultra-high performance concrete containing rare earth polishing powder waste and preparation method thereof

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