JPS58161956A - Manufacture of glassy fiber reinforced cement hardened body - Google Patents
Manufacture of glassy fiber reinforced cement hardened bodyInfo
- Publication number
- JPS58161956A JPS58161956A JP57039477A JP3947782A JPS58161956A JP S58161956 A JPS58161956 A JP S58161956A JP 57039477 A JP57039477 A JP 57039477A JP 3947782 A JP3947782 A JP 3947782A JP S58161956 A JPS58161956 A JP S58161956A
- Authority
- JP
- Japan
- Prior art keywords
- cement
- clinker
- fiber reinforced
- molar ratio
- cement composition
- 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
- 239000004568 cement Substances 0.000 title claims description 53
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 title description 7
- 239000000203 mixture Substances 0.000 claims description 29
- 239000003365 glass fiber Substances 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- 235000012241 calcium silicate Nutrition 0.000 claims description 2
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical group [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 description 13
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 12
- 230000007423 decrease Effects 0.000 description 12
- 238000005452 bending Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003638 chemical reducing agent Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000000292 calcium oxide Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 235000012255 calcium oxide Nutrition 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- WURBVZBTWMNKQT-UHFFFAOYSA-N 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)butan-2-one Chemical compound C1=NC=NN1C(C(=O)C(C)(C)C)OC1=CC=C(Cl)C=C1 WURBVZBTWMNKQT-UHFFFAOYSA-N 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 2
- 235000019976 tricalcium silicate Nutrition 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000004645 aluminates Chemical class 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
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000023753 dehiscence Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- -1 etc.) Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- 229910001678 gehlenite Inorganic materials 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 208000013403 hyperactivity Diseases 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004643 material aging Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は゛ガラス質繊維強化セメント硬化体の製造方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a cured glass fiber reinforced cement body.
セメントとガラス繊維を併用したガラス繊維強化セメン
ト（以下ＧＲＣと称す）は、通常のモルタル及びコンク
リートに比べ曲げ強度特性等が優れているので建材等に
用いられている。BACKGROUND ART Glass fiber reinforced cement (hereinafter referred to as GRC), which is a combination of cement and glass fiber, is used as a building material because it has superior bending strength properties compared to ordinary mortar and concrete.
しかし、セメントとしてポルトランドセメント系のもの
を使用した場合、ガラス繊維がセメントの水和によって
小成するアルカリ、特にけい酸三石灰にもとすく多量の
水酸化カルシウムにより侵食され、中長期材令における
曲げ強度は大巾に低下する欠点があった。However, when Portland cement-based cement is used, the glass fibers are eroded by the alkali formed by the hydration of the cement, especially tricalcium silicate, and a large amount of calcium hydroxide, resulting in medium- to long-term material aging. The drawback was that the bending strength was significantly reduced.
この欠点を排除するため、セメントの水和によって侵食
されない耐アルカリ性ガラス繊維が開発され、これｆ＋
’ｃｉＲＯに利用されてきた。しかし、この耐アルカリ
性ガラス繊維（以下ＡＲＧと称す）を用いても、セメン
トのアルカリ親分による侵食を本質的に防止できないの
で、これらＡＲＧを用いて得られるＧＲＯは、°未だそ
の曲げ強度の低下を完全に防ぎ得なか、つた。To eliminate this drawback, alkali-resistant glass fibers, which are not eroded by cement hydration, have been developed, which f+
'ciRO has been used. However, even if this alkali-resistant glass fiber (hereinafter referred to as ARG) is used, erosion by the alkaline parent of cement cannot be essentially prevented, so GRO obtained using these ARGs still suffers from a decrease in bending strength. Ivy can't be completely prevented.
さらに改１した９１Ｃの一つに、例えば特開昭５５−１
２１９４９号公報に主成分としてカルシウムアルフォア
ルミネート（３０ａＯ−３’Ａ３ｇ、Ｏ，−０ａ８０４
以下ｃ、ｉ、ｃｓと称す）、硫酸カルシウム（０ａＳ０
４以下Ｃ８と称す）、及び遊離石灰（以下ｆ−ＯａＯと
称す）から主り、Ｏ８とＣ，Ａ、（３８とのモル比九１
６〜６５であり、実質的にけい酸三石灰（以下ｃ；ｓ：
ｍｌと称す）を含まない結合材をマトリックスとした（
、Ｒ（３が開示されている。Furthermore, one of the revised 91C is, for example, JP-A-55-1
Publication No. 21949 describes calcium alpha aluminate (30aO-3'A3g, O, -0a804) as the main component.
(hereinafter referred to as c, i, cs), calcium sulfate (0aS0
Mainly from O8 and C, A (hereinafter referred to as f-OaO), and free lime (hereinafter referred to as f-OaO), the molar ratio of O8 and C, A, (38) is 91
6 to 65, and is substantially tricalcium silicate (hereinafter c; s:
The matrix was a binder containing no ml (referred to as ml).
, R(3 are disclosed.
ところが、とのＧ、ＲＣはこれに用いられる結合材がｆ
−Ｃａつを含有することを必須としているので結合材
の凝結時間が極めて短かいため、実用化の場合には多量
の凝結遅延剤を併用することが必要である。However, the bonding material used for G and RC is f.
Since it is essential to contain -Ca, the setting time of the binder is extremely short, so in the case of practical use, it is necessary to use a large amount of setting retarder.
さら、に、この結合材を用いてＧＲＣを製造するさい、
通常用いられるのと同程度の減水剤量では混線不能に近
いため適当の流動性を得るためには、高Ｗ／Ｃにする必
要があり、それがひいては＠度低下の原因であった。Furthermore, when manufacturing GRC using this binding material,
With the same amount of water reducing agent as is normally used, it is almost impossible to cross-circuit, so in order to obtain appropriate fluidity, it is necessary to use a high W/C, which in turn causes a decrease in temperature.
また、強□□□低下を起こさないようなＷ／Ｃで成形す
るには、一般に用いられるよりも多量の減水剤が必要で
あり、不経済でもあった。Furthermore, in order to mold with a W/C that does not cause a decrease in strength, a larger amount of water reducing agent than is generally used is required, which is also uneconomical.
本発明者らは従来品の大魚を排除し、長期材令における
曲げ＠変が初期材令に対比して大巾に低下せず、かつ、
混練及び硬化過程において急結性、或は流動性不良によ
って作業性などに間顧点を生じないガラス質繊維強化セ
メント硬化体について研究した結果、下記の知見を得て
本発明を完成するにいたった。The present inventors eliminated the large fish of the conventional product, and found that the bending @ deformation in the long-term material age did not decrease significantly compared to the initial material age, and
As a result of research into a cured glass fiber reinforced cement that does not cause problems in workability due to rapid setting or poor fluidity during the kneading and curing process, the following knowledge was obtained and the present invention was completed. Ta.
（１） 下記特定のセメント組成物を結合材として、
これとガラス繊維、骨材及び水、又はこれらと必要に応
じて加えられる添加材との混線組成物を硬化させれば、
前記セメント組成物が材によって侵食されず、得られる
硬化体の長期材令における曲げ強度が低下しないとと〇
（２）前記セメント組成物は硬化にさいして十分な凝結
時間を有するので通常の使用の場合、凝結遅延剤を必要
としないこと。(1) Using the following specific cement composition as a binder,
If a cross-wire composition of this and glass fiber, aggregate and water, or these and additives added as necessary, is cured,
If the cement composition is not eroded by the wood and the bending strength of the resulting cured product does not decrease over a long period of time, (2) The cement composition has sufficient setting time during hardening, so it cannot be used normally. In this case, setting retarder is not required.
（３）前記セメント組成物を使用すれば、慣用の結合材
を使用した場合と比らべ、減水剤の使用量が半減するこ
と、これはＷ１０＝−５７とした場合、前記セメントの
流動性（フロー値 ゛）から得られる結果である。もし
減水剤の使用量を一定と１．た場合、同一流動性を得る
ためには、Ｗ／Ｃを必然的に大きくする必要がある。(3) If the cement composition is used, the amount of water reducing agent used will be halved compared to the case where a conventional binder is used; this means that when W10 = -57, the fluidity of the cement is This is the result obtained from (flow value ゛). If the amount of water reducing agent used is constant, 1. In this case, in order to obtain the same fluidity, it is necessary to increase the W/C.
即ち、本発明のガラス質繊維強化セメント硬化体の製造
方法は結合材として下記特定のセメント４ｔｌ物、（以
下セメント組成物Ａという）を使用することを特徴とす
るものである。That is, the method for producing a cured glass fiber-reinforced cement product of the present invention is characterized in that the following specific 4 tl cement (hereinafter referred to as cement composition A) is used as a binder.
セメント組成物；
１８−７０重量％のカルシウムサルフォアルミネート、
３５重量％以下の硫酸カルシウム及び１０〜６５重量％
のダイカルシウムシリケートを主成分とし、Ｓ０３分が
ＳＯ，／Ａｌ、０１モル比で０．４〜１．７、有効Ｃａ
、ｏが有効Ｃａｂ／Ａ４．Ｏｓモル比で０，５〜１２で
あり、かつ遊離ＣａＯを実質的に含有しないもの。Cement composition; 18-70% by weight calcium sulfoaluminate,
Calcium sulfate up to 35% by weight and 10-65% by weight
The main component is dicalcium silicate, SO3 is SO, /Al, 01 molar ratio is 0.4 to 1.7, effective Ca
, o is valid Cab/A4. The Os molar ratio is 0.5 to 12 and substantially free of free CaO.
上記有効ＯａＯはセメント組成物Ａ山の“−３）０７、
Ｆ ｅ、Ｏ，、ＳＯ，、Ｔ１０８等がそれぞれ２０ａＯ
−８ｉｎ、、４ ｃａｏ−ムｚ、Ｏ，−Ｆｅ、０．、Ｃ
２ＬＳ０４．３ ａａｏ −３ＴｉＯ，−（ＪＡ Ｓｏ
、−・−ｔｒｒ形等でＣａＯ、Ｌ−＆ｊｉ合するものと
してそれぞれの成分が消費するＣａｂ、をボーグ式に準
じて計算し、その合量を全ＯａＯ量より差引いたもので
ある。The above effective OaO is "-3)07 of the cement composition A mountain,
Fe, O,, SO,, T108, etc. are each 20aO
-8in,,4cao-muz,O,-Fe,0. , C
2LS04.3 aao -3TiO, -(JA So
, -·-trr form etc., the amount of Cab consumed by each component is calculated based on the combination of CaO, L-&ji, etc., according to the Borg formula, and the total amount is subtracted from the total amount of OaO.
このセメント組成物Ａは、石灰質原料（石灰石、生石灰
等）、アルミナ質原料（ボーキサイト、粘土、高炉スラ
グ等）、ＳＯ８質原料（排脱石こう、′リン醜行こう等
）けい石質原料（けい石粘土、けい砂等）等を用いて、
所定の割合に混合粉砕し、１２００℃〜１３５０℃でｆ
ｉｌ唆し、得られたクリンカーまたはこのクリンカーか
ら製造されるセメントの８０３分力ＳＳＯ，／ＡＡ＊Ｏ
ｓモル比で０，４〜１．７になる様に調製して得られる
。This cement composition A consists of calcareous raw materials (limestone, quicklime, etc.), alumina raw materials (bauxite, clay, blast furnace slag, etc.), SO8 raw materials (exhausted gypsum, phosphorous slag, etc.), silica raw materials (silica using clay, silica sand, etc.)
Mix and grind to a predetermined ratio and heat at 1200℃ to 1350℃
803 component force SSO, /AA*O of the clinker obtained or the cement produced from this clinker
It is obtained by adjusting the molar ratio to 0.4 to 1.7.
クリンカー中にｆ −ＯａＯが、残らない様にすルニは
、有効ｃａｏ が有効ＯａＯ／Ａ、６，０．＋ニル比
で１２以下になる様に配合することが肝要である。To prevent f -OaO from remaining in the clinker, effective cao is effective OaO/A, 6,0. It is important to mix so that the +nyl ratio is 12 or less.
上記０． Ａ、 Ｏ８は１８〜７０重量％であることが
必要でおる。Ｃ，ム、ｃｓが１８重量％以下の場合、所
望の超早強性は得られず、７０重量％を越えると超早強
性は得られるものの経時変化と共に膨張性を示し、強度
低下を起こし、強いては膨張破遺を生じる場合がある。Above 0. A. O8 needs to be 18 to 70% by weight. When C, M, and cs are less than 18% by weight, the desired ultra-early strength cannot be obtained, and when it exceeds 70% by weight, ultra-early strength can be obtained, but the material exhibits expansibility with aging, resulting in a decrease in strength. In some cases, this may lead to expansion and destruction.
このセメント組成物Ａ中の８０８分は、Ｓｏ、／ＡＡ！
ｓｏｎモル比で０．４〜１７であることが肝要であり、
０．４以下の場合、良好なる超早強性は得られず、１．
７を越えると供試体は膨張、亀裂を生じて著しい強度低
下を示す。また、クリンカー中の残存Ｏ８が３５重量％
以上の場合、＄０３／Ａｌ５ｅｓモル比が１７以上の場
合と同様に供試体は膨張・亀裂を生じて著しい強度低下
を示す。808 minutes in this cement composition A is So, /AA!
It is important that the son molar ratio is 0.4 to 17,
If it is 0.4 or less, good ultra-early strength cannot be obtained, and 1.
When it exceeds 7, the specimen expands and cracks, resulting in a significant decrease in strength. In addition, the residual O8 in the clinker is 35% by weight.
In this case, the specimen expands and cracks, resulting in a significant decrease in strength, as in the case where the $03/Al5es molar ratio is 17 or more.
有効ＣａＯ／Ａｌ、Ｏ，モル比が１２を越えるとクリン
カー中にｆ −ＣａＯが残存する様になシ、超早強性は
得られるものの、良好な流動性と十分な作業時間を得る
ことは困難となる。When the effective CaO/Al, O, molar ratio exceeds 12, f -CaO remains in the clinker, and although ultra early strength can be obtained, it is difficult to obtain good fluidity and sufficient working time. It becomes difficult.
したがって、ｆ−ＣａＯを実質的に残さ。ない様にする
ことが・必要であり、そのためには有効ＯａＯ／Ａ１２
０ａ モル比で１２以下にすることが肝要である。し
かし有効ＣａＯ／五ｌ、０３モル比が■２を下回るにつ
れて除々にＪゲーレナイト（２０ａｋ、ム１ｘｏｓ−３
１０．．以７ｃ、ｉｓと称す。）が生成する様になりモ
ル比が０．５を下回ると、クリンカー中のＣ，Ａ Ｓ量
が増加し、それにより得られたセメント組成物Ａの強度
が低下する様になるので、好ましくは有効Ｏａｋ／ムＺ
、０８モル比は０，５〜１２である。Therefore, f-CaO is substantially left behind. It is necessary to ensure that no
It is important that the molar ratio of 0a is 12 or less. However, as the effective CaO/5l, 03 molar ratio falls below ■2, J Gehlenite (20ak, Mu1xos-3
10. ．． Hereinafter, it will be referred to as 7c and is. ) is formed and the molar ratio is less than 0.5, the amount of C, A, and S in the clinker increases, and the strength of the resulting cement composition A decreases, so it is preferable to Effective Oak/MuZ
, 08 molar ratio is 0.5-12.
また、本発明に用いるセメント組成物Ａを製造する際に
、クリンカー中に３５重量％以上のＯ８が残る様なＳＱ
、質原料が多い配合組成では、焼成時にクリンカーの融
着がはなはだしくなる等のキルン運転上、トラブルが生
じ易くなる。In addition, when manufacturing the cement composition A used in the present invention, SQ is such that 35% by weight or more of O8 remains in the clinker.
If the blended composition contains a large amount of raw materials, troubles are likely to occur during kiln operation, such as excessive clinker fusion during firing.
このためｆｌＦ、成上の面からもクリンカー中にＣ８が
３５重量％以下になる様な原料配合の範囲内で焼成する
ことが望ましい。For this reason, from the viewpoint of flF and production, it is desirable to perform firing within a range of raw material blends such that the C8 content in the clinker is 35% by weight or less.
上記クリンカー中のｓｏ、６がＳｏ、／Ａｌ５Ｏ，モル
比で０．４〜１．７のものを焼成し、それを粉砕してセ
メント組成物ムを得る方法はもちろんであるが、キルン
内でのクリンカーの融着等のドラフルを考えた場合、ク
リンカー中のＳＯ８／ＡｌｔＯｓモル比Ａｌ化較的低い
モル比、例えば０゜２〜０．４になる様に原料を調合し
、焼成して得られたクリンカーと石こうをセメント組成
物Ａ中の所望のＳｏ３／ＡＡ！ｔｏｓモル比（０，４〜
１．７）になる様に混合粉砕または分離粉砕して本発明
のセメント組成物Ａを製造するのも一つの方法である。Of course, there is a method in which the above clinker has a molar ratio of 0.4 to 1.7, in which SO, 6 is So, /Al5O, and the molar ratio is 0.4 to 1.7. Considering druffles such as clinker fusion, the raw materials are prepared so that the SO8/AltOs molar ratio in the clinker is relatively low, for example, 0°2 to 0.4, and the resulting product is obtained by firing. clinker and gypsum in the desired So3/AA! tos molar ratio (0,4~
One method is to produce the cement composition A of the present invention by mixing and pulverizing or separating and pulverizing as shown in 1.7).
しかし、この場合は、ＳＯａ／Ａｌ５Ｏｓモル比は０．
２を下回ってはならず、０．２を下回るとクリンカー中
の所望のｃ、ａ、ａｓ鷺を得ることが困難となり、品質
の変シ）゛の原因”になる。However, in this case, the SOa/Al5Os molar ratio is 0.
It should not be less than 2. If it is less than 0.2, it will be difficult to obtain the desired c, a, and as in the clinker, which will cause quality deterioration.
ガラス質賦維としてはＡＲＧあるいは通常のガラス繊維
（以下Ｅ Ｇと称す）の他ロックウール、スラグ繊維等
いずれを用いてもよい。その添加量はモルタルに対し１
％以上が好ましく、それ以下では繊維添加による強度へ
の寄与が少くない。なお、繊維は１０％以上添加しても
差しつかえないが、曲げ強硬の向上は斯待できず、むし
ろ不経済である。As the glass fiber, any of ARG or ordinary glass fiber (hereinafter referred to as EG), rock wool, slag fiber, etc. may be used. The amount added is 1 for mortar.
% or more is preferable, and if it is less than that, the contribution of the addition of fiber to the strength is not small. Although it is acceptable to add 10% or more of fiber, it is not possible to improve the bending stiffness and is rather uneconomical.
さらに、以上の諸材料のほかに、本発明に基づいてガラ
ス質繊維強化セメント硬化体を製造するさい、慣用の減
水剤が使用され、たとえばβ−ナフタリンスルフオン酸
フォルマリン縮合物を主成分とする「マイティ１５０Ｊ
（花王石鹸社製、商品名）が示される。Furthermore, in addition to the above-mentioned materials, when producing the cured glass fiber reinforced cement according to the present invention, conventional water reducing agents are used, such as those containing β-naphthalene sulfonic acid formalin condensate as the main component. Mighty 150J
(manufactured by Kao Soap Co., Ltd., product name) is shown.
その使用量はセメント組成物Ａに対して０．２〜８．０
％が適用範囲である。The amount used is 0.2 to 8.0 relative to cement composition A.
% is the applicable range.
また、セメント組成物ムの一部をフライアッシュあるい
はスラグで置きかえてもよい。Also, part of the cement composition may be replaced with fly ash or slag.
本発明のガラス質繊維強化セメント硬化体を製造するに
は、前記セメント組成物Ａ、ガラス質繊維および骨材と
を通常のモルタルまたはコンクリートの配合方法に準じ
て練り混ぜて成形するか、またはセメント組成物Ａをあ
らかじめペーストもしくはモルタル状に混練し、吹き付
ける時に繊維と混合するスプレー法または乾式吹き付は
法によって行な′われる。In order to produce the cured glass fiber-reinforced cement of the present invention, the cement composition A, glass fibers, and aggregate are kneaded and molded according to an ordinary mortar or concrete mixing method, or cement The spraying method or dry spraying method is carried out by kneading the composition A in advance into a paste or mortar state and mixing it with the fibers at the time of spraying.
成形後の養生は、慣用のモルタル及びコンクリートの場
合に準じて行なわれる。Curing after forming is carried out in the same manner as for conventional mortar and concrete.
本発明のガラス質繊維強化セメント硬化体に用いうれる
セメント組成物Ａは、ｆ−（ｉａｃ” を実質的に含有
しないものであり、従来のｆ・ＯａＯを含有するこの種
のセメント組成物に比べて凝結時間が長い。従ってガラ
ス質繊維強化セメント硬化体製造の際、十分な作業時間
と良好な作業性が得られ、ペーストまたはモルタルタン
ク内における硬化による詰まりゃホース内での閉塞を全
く解消したものである。Cement composition A that can be used in the cured glass fiber-reinforced cement of the present invention is one that does not substantially contain f-(iac), and is different from conventional cement compositions of this type containing f-OaO. The setting time is longer than that of the previous model.Therefore, when manufacturing a hardened glass fiber reinforced cement product, sufficient working time and good workability can be obtained, and no clogging due to hardening in the paste or mortar tank or clogging in the hose will be completely eliminated. This is what I did.
また、本発明に基づくガラス質皺維強化セメント硬化体
は、普通ポルトランドセメント等を用いたＧＲＣに比べ
、中、長期の曲げ強度の低下が著しく少ない特長を有す
る。Furthermore, the vitreous wrinkle fiber-reinforced hardened cement body based on the present invention has a feature that the decrease in bending strength over a medium to long term is significantly less than that of GRC using ordinary Portland cement or the like.
次に、本発明を実施例によって説明するが、本発明はこ
れらによって限定されるものではない。なお、本文中の
部及び％は特記しない限り重量部及び重量％である。Next, the present invention will be explained by examples, but the present invention is not limited thereto. Note that parts and percentages in the text are by weight unless otherwise specified.
結合材の製造例
表１に示す原料を表２に示す配合割合で混合し、粉砕し
たそれぞれの原料配合物をテストキルンで１２００℃〜
１３５０℃で焼成し、３種類のクリンカー（１℃１〜３
）を得た。得特間口肥８−１６１９５６ （４）
表 １
表 ２
られたそｈぞれのクリンカーあ化学分析値及び主要鉱物
組成について求め、その結果を表３に示す。Example of manufacturing a binder: The raw materials shown in Table 1 were mixed in the proportions shown in Table 2, and the respective pulverized raw material mixtures were heated in a test kiln at 1200°C
Calcined at 1350℃, three types of clinker (1℃1-3
) was obtained. The chemical analysis values and main mineral composition of each clinker were determined, and the results are shown in Table 3.
クリンカー階１及びＭ２は本発明が限定するｆ −Ｇａ
Ｏを含有しないセメント組成物Ａのクリンカーであり、
クリンカーＮｎ３はｆ・ＯａＯを含有する従来品のセメ
ントクリンカ−であった。Clinker floors 1 and M2 are f-Ga defined by the present invention.
A clinker of cement composition A that does not contain O,
Clinker Nn3 was a conventional cement clinker containing f.OaO.
それぞれのクリンカーをボールミルにて粉砕した。得ら
れたセメントの陽はクリンカーのそれに対応しく表４）
、セメントｍｌのプレーン比表面積は、４４００ ｃｍ
’／ Ｐ 、同ＮＢ２は４２８０ ｃｍ’／ ｌｉＬ
、同Ｍ３は４３７０ｃｍ’／ンであった。Each clinker was ground in a ball mill. The positive values of the obtained cement correspond to those of the clinker (Table 4)
, the plain specific surface area of cement ml is 4400 cm
'/P, NB2 is 4280 cm'/liL
, M3 was 4370 cm'/n.
試例例１−２、比較試験例１−５
前述の方法で得られたそれぞれのセメントについて、モ
ルタルのフロー、凝結時間について測定した。Test Example 1-2, Comparative Test Example 1-5 Mortar flow and setting time were measured for each cement obtained by the above method.
モルタルの配合割合は、Ｓ ／ ０ ＝ ｏ、 ６、ｗ
／ｃ＝Ｑ、３５とし、さらに減水剤（花王石鹸（株）裂
開品名「マイティ１５０Ｊ）、凝結遅延剤（クエン酸ソ
ーダ：試薬１級品）をセメントに対して表４の割合で添
加した。The mixing ratio of mortar is S / 0 = o, 6, w
/c=Q, 35, and a water reducing agent (Kao Soap Co., Ltd. dehiscence product name "Mighty 150J") and a setting retarder (sodium citrate: grade 1 reagent) were added to the cement in the proportions shown in Table 4. .
フローは直径５５Ｃｒｎ高さ５．０ ｃｍの円筒コーン
にモルタルを投入してコーンを取り去ったのちのモルタ
ルの拡がり直径である。Flow is the spread diameter of mortar after it is poured into a cylindrical cone with a diameter of 55Cr and a height of 5.0 cm and the cone is removed.
凝結時間はＪＩＳＲ５２０１−１９８１規格のビカー針
装置を用いて始発用櫟準針が下から３ｆｉの所を始発時
間、上から３−で止まった所を終結時間とした。得られ
た結果を合わせた表４に示す。なお、目標のフロー値は
表４の結果より、ｆ−ＣｉａＯを含まない本発明に用い
られるセメント組成物Ａは凝結遅延剤無添加、減水剤０
．６％添加でフロー値１６６１ｏｌと始発時間が２時間
以上と十分な流動性と作業時間を有するものであり、ガ
ラス１維強化セメント硬化体を製造する際、モルタルタ
ンク内の詰まりタホース内の閉塞も起こさず、極めて良
好なるこて仕上で性状を有するものであることが認めら
れた。The setting time was determined by using a Vicat needle device according to the JISR5201-1981 standard, and the point where the starting point needle stopped at 3fi from the bottom was the starting time, and the point where the starting needle stopped at 3- from the top was the ending time. The obtained results are shown in Table 4. The target flow value is based on the results in Table 4. Cement composition A used in the present invention, which does not contain f-CiaO, has no setting retarder added and no water reducing agent.
．． It has sufficient fluidity and working time, with a flow value of 1661 ol and a starting time of over 2 hours when added at 6%, and when manufacturing a glass 1 fiber reinforced cement hardened product, it prevents clogging in the mortar tank and blockage in the hose. It was observed that the troweling did not occur and had extremely good trowel finish and properties.
ｆ −ＯａＯを含有する従来のセメントと同じ品ＫＡの
セメント陽３をセメントを荀１及び１ｔ１２の場合に準
じて混練したモルタルはフロー値が小さく、凝結時間も
短かいものでおり、Ｇ′Ｒ１ＣＩＩ！造は不可能に近か
った。The mortar made by kneading Cement Yang 3 of KA, which is the same as the conventional cement containing f -OaO, in the same manner as in Xun 1 and 1t12 has a small flow value and a short setting time, and is G'R1CII. ! It was close to impossible to build.
従来の七メ２ント陽３で良好なる作業性（亦動性）を得
るには、減水剤１２％、凝結遅延剤０．３％を必要とし
た。In order to obtain good workability (hyperactivity) with the conventional 7-metal 2-point-3 method, 12% of the water reducing agent and 0.3% of the setting retarder were required.
しかし、始発時間は１時間以内と早いものであり、ＧＲ
Ｃ製造の際、モルタルタンク内の詰りゃホース内の閉塞
をしばしば起こした。However, the first train departs within an hour, and GR
During C production, clogging in the mortar tank often caused blockages in the hoses.
また、始発・終結時間が本発明で用いるセメント組成物
Ａと比べて短かく、十分なこて仕上げ時間が得られなか
った。In addition, the starting and finishing times were shorter than those of cement composition A used in the present invention, and sufficient troweling time could not be obtained.
実施例１−２、比較例１−２
表４に示す試験例１１°２、比較試験例４．５のモルタ
ルと市販のムＲＧまたはＥＧのそれぞれを用いて板（４
５Ｃｒｎ×４５ｃｒｎ×１ｃｒｎ）をダイレクトスプレ
ー法で成形した。ガラス繊維の混和率はモルタルに対し
て５％とした。Example 1-2, Comparative Example 1-2 A board (4
5 crn x 45 crn x 1 crn) was molded by a direct spray method. The mixing ratio of glass fiber to the mortar was 5%.
成形は２０℃の恒温室内で行ない養生は恒温室内２０℃
、ＲＨＩ＝９５％に所定材令期間保持した。Molding is done in a constant temperature room at 20℃, and curing is done in a constant temperature room at 20℃.
, RHI was maintained at 95% for a predetermined age period.
曲げ強唯試験は、成形板を２５ ｃｍ Ｘ ５（１）×
１ｃｒｎの大きさに切り出した試験片にスパン２０−の
３等分点載荷で行なった。得られた結果表５に示したよ
うに、本葵明によるガラ灸貿１維強化セメント硬化体は
、ムＲＧを用いた場合、１年の長期にわたり曲げ強度の
低下は見られず、ＥＧ′ｆＥ用いた場合でも普通ポルト
ランドセメントとＡＲＧとから製造しだＧＲ（３より曲
げ強度は低下しないことが認められた。In the bending strength test, the molded plate was 25 cm x 5 (1) x
The test was carried out by loading a test piece cut into a size of 1 crn at three equal points with a span of 20-. Obtained Results As shown in Table 5, when using MuRG, the hardened cement material made by Akira Hon Aoi showed no decrease in bending strength over a long period of one year, and EG' It was observed that even when fE was used, the bending strength did not decrease compared to GR (3), which was manufactured from ordinary Portland cement and ARG.
本発明によるガラス貿１ｉｆｉ維Ｖ゛化セメントは表面
こて仕上げが容易であり、しかも十分な作業時間が取れ
たが、従来のこの種のセメントは、表面こて仕上げと作
業時間は困難かつ不十分であった。The surface troweling of the glass trade 1ifi fiber V' cement according to the present invention is easy and requires sufficient working time, but with conventional cement of this type, surface troweling and working time are difficult and time consuming. That was enough.
一方、普通ボルトランドセメントラ用いた場合は、曲げ
強度が大きく低下することが礪められた。On the other hand, when ordinary Bolland Cementora was used, the bending strength was found to be significantly reduced.
特許出願人 日本セメント株式会社 代理人弁理士 浸 野 豐 司 ＝２８−Patent applicant: Nippon Cement Co., Ltd. Representative Patent Attorney Tsukasa Ibino =28-
Claims (1)
るととｌ特徴トするガラス質繊維強化セメント硬化体の
＠遣方法 セメント組成物： １８−７０重量％のカルシウムサルフォアルミネート、
３５重１％以下の硫醸カルシウム及び１０〜６５重量％
のダイカルシウムシリケートを主成分とし、ＳＯｓ分が
Ｓ Ｏｓ ／ Ａ ｌ ｔ０８モル比で０．４〜１．７
、有効ＯａＯが有効ＯａＯ／Ａｌ、０３ モ＃比で０
．５〜１．２であり、かつ遊離Ｃ８，０を実質的に含有
しないもの(1) Method for producing a cured glass fiber reinforced cement product characterized by using the below-mentioned cement composition as a binder Cement composition: 18-70% by weight calcium sulfoaluminate,
35% by weight or less of sulfurized calcium and 10-65% by weight
The main component is dicalcium silicate, and the SOs content is 0.4 to 1.7 in SOs/Alt08 molar ratio.
, effective OaO is effective OaO/Al, 03 mo # ratio is 0
．． 5 to 1.2 and substantially free of free C8,0
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57039477A JPS58161956A (en) | 1982-03-15 | 1982-03-15 | Manufacture of glassy fiber reinforced cement hardened body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57039477A JPS58161956A (en) | 1982-03-15 | 1982-03-15 | Manufacture of glassy fiber reinforced cement hardened body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58161956A true JPS58161956A (en) | 1983-09-26 |
| JPH0450265B2 JPH0450265B2 (en) | 1992-08-13 |
Family
ID=12554141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57039477A Granted JPS58161956A (en) | 1982-03-15 | 1982-03-15 | Manufacture of glassy fiber reinforced cement hardened body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58161956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798628A (en) * | 1984-10-30 | 1989-01-17 | Blue Circle Industries Plc | Settable mineral clinker compositions |
| JPH01110942A (en) * | 1987-10-26 | 1989-04-27 | Nippon Electric Glass Co Ltd | Manufacture of lightweight tile panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290526A (en) * | 1976-01-26 | 1977-07-29 | Nihon Cement | Ultraquickkhardening cement |
| JPS5439434A (en) * | 1977-09-03 | 1979-03-26 | Chichibu Cement Kk | Method of making high gypsum type special cement |
| JPS55121949A (en) * | 1979-03-12 | 1980-09-19 | Nihon Cement | Glass fiber reinforced concrete product |
| JPS5632262A (en) * | 1979-08-21 | 1981-04-01 | Toppan Printing Co Ltd | Heat resisting extremely low temperature resisting vessel |
-
1982
- 1982-03-15 JP JP57039477A patent/JPS58161956A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290526A (en) * | 1976-01-26 | 1977-07-29 | Nihon Cement | Ultraquickkhardening cement |
| JPS5439434A (en) * | 1977-09-03 | 1979-03-26 | Chichibu Cement Kk | Method of making high gypsum type special cement |
| JPS55121949A (en) * | 1979-03-12 | 1980-09-19 | Nihon Cement | Glass fiber reinforced concrete product |
| JPS5632262A (en) * | 1979-08-21 | 1981-04-01 | Toppan Printing Co Ltd | Heat resisting extremely low temperature resisting vessel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798628A (en) * | 1984-10-30 | 1989-01-17 | Blue Circle Industries Plc | Settable mineral clinker compositions |
| JPH01110942A (en) * | 1987-10-26 | 1989-04-27 | Nippon Electric Glass Co Ltd | Manufacture of lightweight tile panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0450265B2 (en) | 1992-08-13 |
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