JPH03290339A - Production of admixture for hydraulic composite material - Google Patents
Production of admixture for hydraulic composite materialInfo
- Publication number
- JPH03290339A JPH03290339A JP8833190A JP8833190A JPH03290339A JP H03290339 A JPH03290339 A JP H03290339A JP 8833190 A JP8833190 A JP 8833190A JP 8833190 A JP8833190 A JP 8833190A JP H03290339 A JPH03290339 A JP H03290339A
- Authority
- JP
- Japan
- Prior art keywords
- silica
- admixture
- rock
- silica sand
- natural rock
- 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
- 239000002131 composite material Substances 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 116
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 41
- 239000011435 rock Substances 0.000 claims abstract description 21
- 239000010453 quartz Substances 0.000 claims abstract description 19
- 239000004576 sand Substances 0.000 claims abstract description 14
- 241000923606 Schistes Species 0.000 claims description 11
- 239000004575 stone Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000003213 activating effect Effects 0.000 abstract 1
- 229910021485 fumed silica Inorganic materials 0.000 abstract 1
- 239000011372 high-strength concrete Substances 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011044 quartzite Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は水硬性複合材料用混和材の製造方法に係るもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing an admixture for hydraulic composite materials.
（従来の技術）
従来、高強度コンクリートの２次製品を造るとき、コン
クリート中に天然シリカを導入するか、超高強度コンク
リート用混和材としてシリカフニームを使用している。(Prior Art) Conventionally, when producing secondary products of high-strength concrete, natural silica is introduced into the concrete, or silica hneem is used as an admixture for ultra-high-strength concrete.
（発明が解決しようとする課題）
しかしながら天然のシリカはシリカフニーム等と異なり
、活性化していないので、コンクリートを高温養生しな
いと高強度コンクリートにならない。(Problems to be Solved by the Invention) However, unlike silica hneem and the like, natural silica is not activated, so high-strength concrete cannot be obtained unless concrete is cured at a high temperature.
またシリカフニームは所謂産業廃棄物であり、発生する
工場、使用する原料によってもシリカフニームの組成が
若干具なる。しかし水セメント比が極端に少ない超高強
度コンクリートにおいては組成が若干具なるだけで、施
工時の流動性の差は大きい。Furthermore, silica hneem is a so-called industrial waste, and the composition of silica hneem varies depending on the factory where it is generated and the raw materials used. However, in ultra-high-strength concrete where the water-cement ratio is extremely low, the composition is only slightly different, but there is a large difference in fluidity during construction.
本発明はこのような実情に鑑みて提案されたもので、そ
の目的とする処は、施工時の流動性が安定し、水硬性材
料の強度の増進に寄与する水硬性複合材料用混和材の製
造方法を提供する点にある。The present invention was proposed in view of the above circumstances, and its purpose is to provide an admixture for hydraulic composite materials that stabilizes fluidity during construction and contributes to increasing the strength of hydraulic materials. The point is that it provides a manufacturing method.
（課題を解決するための手段）
前記の目的を達成するため、本発明の方法によれば、シ
リカ成分を多量に含有した段戸産動力熱変成石英片岩ま
たは段戸産硬質石英賞岩石よりなる天然岩石、珪砂を１
０００℃以上の温度で加熱するものである。(Means for Solving the Problems) In order to achieve the above object, according to the method of the present invention, a quartz schist made of thermally metamorphosed quartz schist from Dando or hard quartz rock from Dando containing a large amount of silica component is used. 1 natural rock, silica sand
It is heated at a temperature of 000°C or higher.
（作用）
段戸産動力変成石英片岩（以下石英片岩と称する）段戸
産硬質石英質岩石は珪石とともにシリカ成分を多量に含
有し、染、熱を与えると膨脹し、粉砕し易く微粒粉化し
易く、且つ高熱を与えられることによってシリカ成分が
活性化し、コンクリートの如き水硬性材料に混和される
ことによって、同水硬性材料の強度が著しく増進され、
また前記各材料の組成は、安定していて、水硬性の流動
性が常に安定した状態に保持される。(Function) Dando-produced power metamorphosed quartz schist (hereinafter referred to as quartz schist)Dando-produced hard quartzite rock contains a large amount of silica as well as silica, and when dyed or heated, it expands and becomes easily crushed into fine powder. By easily applying high heat, the silica component is activated and mixed into a hydraulic material such as concrete, which significantly increases the strength of the hydraulic material.
Furthermore, the composition of each of the materials is stable, and hydraulic fluidity is always maintained in a stable state.
（実施例） 以下本発明を実施例について発明する。(Example) The present invention will be described below with reference to Examples.
前記石英片岩及び段戸産硬質石英質岩石（１）は第１図
に示すように急激に加熱されると膨脹し、約１３５０℃
で体積は約９倍にもなる。As shown in Figure 1, the quartz schist and the hard quartzite rock (1) from Dando expand when heated rapidly to about 1350°C.
The volume will be approximately 9 times larger.
二のように膨脹した前記石英片岩、硬質石英質岩石は砕
き易く微粒粉化し易い。2. The expanded quartz schist and hard quartzite rock are easy to crush and turn into fine powder.
而して前記石英片岩は表−１に示すようにシリカ成分を
多量に含有し、また珪砂としての大畑浮遊珪砂はシリカ
成分を大量に含有し、埋蔵量も多く、品質や組成が安定
している。As shown in Table 1, the quartz schist contains a large amount of silica, and Ohata suspended silica sand as silica sand contains a large amount of silica, has large reserves, and is stable in quality and composition. There is.
これらはシリカフニームの組成とイ以っており、例えば
前記珪砂をコンクリートに混入して加熱養生すると著し
く強度が増大され、１０００ｋｇ／ｃｉｉ以上の圧縮強
度が得られる。These have the same composition as silica hneem, and for example, when the silica sand is mixed into concrete and heated and cured, the strength is significantly increased, and a compressive strength of 1000 kg/cii or more can be obtained.
本方法においては前記石英片岩または硬質石英質岩石よ
りなる天然岩石、珪砂を１０００℃以上の温度で加熱し
て混和材を製造することによってシリカ成分が活性化さ
れ、且つ極めて微細な粉粒となることと相俟って、前記
混和材を混入したコンクリートの強度が著しく増大され
、水セメント比が極端に少ない超高強度コンクリートに
おいても、施工時の流動性がシリカフニームより遥かに
安定している。In this method, the silica component is activated by producing an admixture by heating the natural rock made of quartz schist or hard quartz rock, and silica sand at a temperature of 1000°C or higher, and the silica component is turned into extremely fine powder particles. Coupled with this, the strength of concrete mixed with the admixture is significantly increased, and even in ultra-high strength concrete with an extremely low water-cement ratio, the fluidity during construction is much more stable than that of silica hneem.
また前記したように、本方法によって製造された混和材
は微粉粒化され、粉粒度を調整しうることによって混和
材としての適用範囲が従来のシリカフニームより広い。Furthermore, as described above, the admixture produced by this method is finely pulverized and the particle size can be adjusted, so that the range of application as an admixture is wider than that of conventional silica hneem.
更に製造過程で混和材の組成分をブレンドすることによ
って得られる組成の範囲は従来のシリカフニームより広
い。Furthermore, the composition range obtained by blending the admixture components during the manufacturing process is wider than that of conventional silica huneem.
表−１（％）
なお本発明においては前記段戸産石英片岩、硬質石英質
岩石の天然岩石、珪砂に１０００℃以上の温度を加えた
後、粉砕、あるいは更に造粒してもよく、また前記天然
岩石、珪砂を粉砕〜あるいは更に造粒したのち１０００
℃の温度を加えてもよく、また前記２つの方法を夫々単
独で行なうか、または双方を繰返して行なうようにして
もよい。Table 1 (%) In the present invention, after applying a temperature of 1000 ° C. or more to the Dando quartz schist, hard quartz rock natural rock, or silica sand, it may be crushed or further granulated. After crushing or further granulating the natural rock and silica sand,
℃ temperature may be added, and the above two methods may be carried out individually or both may be carried out repeatedly.
（発明の効果）
本発明によればシリカ成分を多量に含有しており、しか
も％、尽藏に埋設されている段戸産動力熱変成石英片、
または段戸産硬質石英質岩石、珪砂に１０００’Ｃ以上
の温度を加えることによって、従来のシリカフニームが
水セメント比が極端に少ない超高強度コンクリートにお
いて組成が若干異なるだけで、施工時の流動性の差が大
きくなるのに反して、品質保証がし易く、安定供給が可
能で、混和材としての適応範囲が前記シリカフニームよ
り広い水硬性複合材料用混和材が製造しうるものである
。(Effects of the Invention) According to the present invention, a thermally altered quartz piece containing a large amount of silica component and buried in a silica,
Or, by applying a temperature of 1000'C or more to hard quartz rock and silica sand produced in Dando, conventional silica hneem has a slightly different composition in ultra-high-strength concrete with an extremely low water-cement ratio, resulting in improved fluidity during construction. However, it is possible to produce an admixture for hydraulic composite materials that is easy to guarantee quality, can be stably supplied, and has a wider range of application as an admixture than the silica hneem.
第１図及び第２図は夫々段戸石英片岩の焼成前及び焼成
後の状態を示す説明図である。
（１）・・・石英片者
代
理
人FIGS. 1 and 2 are explanatory diagrams showing the state of terraced quartz schist before and after firing, respectively. (1)...quartz piece agent
Claims (1)
片岩または段戸産硬質石英質岩石よりなる天然岩石、珪
砂を１０００℃以上の温度で加熱することを特徴とする
水硬性複合材料用混和材の製造方法。 ２、前記天然岩石、珪石を１０００℃以上の温度で加熱
したのち粉砕し、あるいは更に造粒する請求項１記載の
水硬性複合材料用混和材の製造方法。 ３、前記天然岩石、珪砂を粉砕、あるいは更に造粒した
のち１０００℃以上で加熱する請求項１記載の水硬性複
合材料用混和材の製造方法。[Claims] 1. A natural rock or silica sand made of Dando-produced thermally metamorphosed quartz schist or Dando-produced hard silica rock containing a large amount of silica component is heated at a temperature of 1000°C or higher. A method for producing an admixture for hydraulic composite materials. 2. The method for producing an admixture for hydraulic composite materials according to claim 1, wherein the natural rock or silica stone is heated at a temperature of 1000° C. or higher and then crushed or further granulated. 3. The method for producing an admixture for hydraulic composite materials according to claim 1, wherein the natural rock or silica sand is crushed or further granulated and then heated at 1000°C or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8833190A JPH03290339A (en) | 1990-04-04 | 1990-04-04 | Production of admixture for hydraulic composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8833190A JPH03290339A (en) | 1990-04-04 | 1990-04-04 | Production of admixture for hydraulic composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03290339A true JPH03290339A (en) | 1991-12-20 |
Family
ID=13939896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8833190A Pending JPH03290339A (en) | 1990-04-04 | 1990-04-04 | Production of admixture for hydraulic composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03290339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012193056A (en) * | 2011-03-15 | 2012-10-11 | Kajima Corp | Cement material |
-
1990
- 1990-04-04 JP JP8833190A patent/JPH03290339A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012193056A (en) * | 2011-03-15 | 2012-10-11 | Kajima Corp | Cement material |
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