638 44

X (1)

A X-RAY STUDY OF JAPANESE PORTLAND-CEMENT CLINKERS. I.

By Seiji Kondo & Toshiyoshi Yamauchi.

Abstract

X-ray analyses ware made of 12 different clinkers manufactured by 9 Japanese portland

cement plants. Of these clinkers 6 were made by dry process and 6 by wet. The results can

be abridged as follows:

(1) All clinkers showed almost same structure although some differences in the amounts of

constituent minerals and in the degree of their crystal development were observable.

(2) The chief constituent of these clinkers was similar to the tricalcium silicate reported in "The Study of Calcium Silicates" (S. Kondo & T. Yamauchi, Jour. Jap. Ceram. Assoc., 1934,

Vol. 42, 479). Also some dicalcium silicate was found. No other constituents could be distinctly

detected.

(3) The authors' results agree well with those reported by A. Guttmann & F. Gille of centri

fuged Alite portions and also those obtained by K. Koyanagi of Alite portioni of a particular

clinker whose chemical composition was very near to that of Alite.

(4) Strictly speaking, there were some slight differences between the wet process and dry

process clinkers.

Chemical and mineralogical compositions, diffraction paiterns, and interplaner distances are

given.

(Dept. of Ceramic Engineering, Tokio University of Engineering)

(

) 40

X

H. LeChatelier (Tonind. Ztg., 1882, S. 202; Ann. des Min., 1887,

S. 345; Tonind. Ztg., 1892, S. 1056) 3GaOAl2O3,

2CaOSiO2, 2 (AlFe)2O3MgO 3CaOSiO2 A.

E. Tornebohm (Tonind. Ztg., 1897, S. 1148, 1158) Alit,

Belit, Celit, Felit Alit

9CaO2Al2O33CaOSiO2 (Isomorphe Mischung) C. R.

Richardson (Eng. News 1902, p. 84) 3CaOSiO23CaOAl2O3

2CaOSiO32CaOAl2O3 O. Schott (Protokoll, 1907, S. 285)3CaO

SiO2 E. S. Shepherd, G. A. Rankin and F. E. Wright (Ind. Eng. Chem., 1911, p.

36

211; Ztschr. anorg. Chem., 1911, S. 19)CaO-SiO2 3CaOSiO2 Al2O3

N. v. Glasenapp (Protokoll, 1913, S. 313; Zement, 1913, S. 131)Alit

J. L. Gillson and E. C. Warren (J. Amer, Ceram. Soc., 1926, p. 783)

X 3CaOSiO22CaOSiO2 Calsium-Almino-

Silicates

E. Janeck (Ztschr, anorg. Chem., 1911, S. 200; Prosokoll, 1912, S. 249; 1913, p. 273)3CaO

SiO2 8CaO2SiO2Al2O3 Janeckeite Alit

G. A. Rankin & F. E. Wright (Ztschr. anorg.

Chem., 1912, S. 63)1404 8CaO2SiO2Al2O33CaOSiO2, 2CaOSiO23CaOAl2O3

Janeckeite Wetzel (Chem. Ztg., 1914, S. 522)Janeckeite

G. A. Rankin and F. E.

Wright (J. Ind. Eng. Chem., 1915, p. 466; Ztschr. anorg. Chem., 1915, S. 213; Amer. J. Sci., 1915,

p. 1)3CaOSiO21900 Alit

3CaOSiO2, 2CaOAl2O3, 2CaOSiO2

5CaO3Al2O3 W. Dyckerhoff (Zement, 1927,

S. 735) CaO 2CaOSiO2 3CaO

Al2O3, 5CaO3Al2O3 CaO W. C Hansen, W. Dyckerhoff, F. W. Ashton

and R. H Bogue (J. Phys. Chem., 1927, p. 607; Zement, 1927, S. 51)8CaO+Al2O3+2SiO2

Janeckeite X

3CaOSiO2, 2CaOSiO23CaOAl2O3

3CaOSiO2 A. Guttmann and F. Gille (Ze

ment, 1927, S. 921, 951)Alit, Belit, & 2CaOSiO2, 2CaOSiO2, free CaO, Celit, Calsium Alumi

nates (3CaOAl2O3, 5OaO3Al2O3), Epezite, 2CaOSiO2 9 Alit

3CaOSiO2+3CaOAl2O3 H. Kuhl (Zement, 1927, S. 1118; Tonind.-Ztg., 1929, S.

1571)Alit3CaOSiO2Janekeite L. T. Brownmiller & R. H.

Bogue (Amer. J. Sci., 1930, p. 241)X 8CaOAl2O32SiO2CaO-Al2O3-SiO2

3CaOSiO2, 2CaOSiO2, 3CaOAl2O3CaO

1929 A. Guttmann & F. Gille (Zement, 1929, S. 912)X Alit

Alit 3CaOSiO2 Celit H. Le Chatelier

(Compt rend, 1882, p. 13) E. S. Shepherd, G. A. Rankin and F. E. Wright (Ind. Eng. Chem., 1911. p.

211) CaO-Al2O3-Fe2O W. C. Hansen, L. T. Brownmiller & R. H.

Bogue (J. Amer. Chem. Soc., 1928, p. 396)Celit4CaOAl2O3Fe2O3

S. Solacolu (Zement, 1932, S. 301)

Celit, Beit

3CaOSiO2 (Alit), - 2CaOSiO2, 3CaOAl2O3, 4CaOAl2O3

37

:525 X(1) 639

640 44

Fe2O3 (Celit) 2CaOFe2O3

1

X

X

1.

3CaOSiO2,,2CaOSiO2

1

X X

5( , ,,42 497 311,9)

2.

3CaOSiO2,2CaOSiO2 X

19

mm 2

Fig. 1 3CaOSiO2

38

525 X(1) 641

Fig. 2 2CaOSiO2

Fig. 3 No. 1

Fig. 4 No . 2

Fig. 5 No. 3

Fig. 6 No. 4

Fig. 7 No. 5

Fig. 8 No. 10

Fig. 9 No . 12

39

642 44

2 mm

(No. 1)

(vs=very strong, s=strong, m=moderate, w=weak, vw=very weak)

,

40

525 X(1) 643

No. 1, No.2, No. 3

,3CaOSiO2

3CaOSiO2

2

3CaOSiO2

3CaOSiO2

,,

3.

X

4( , ,, 42 500, 479,9)

3CaOSiO23CaOSiO2 3CaO

SiO2 17mm

3CaOSiO2 3CaOSiO22CaOSiO22CaO

SiO2

2CaOSiO23CaOSiO2

3CaOAl2O3, 4CaOAl2O3Fe2O3X

X

3CaOSiO22CaO

SiO2 3CaOSiO2:2CaOSiO2=3:1

3CaOAl2O3, 4CaOAl2O3Fe2O3, 2CaOFe2O3

41

644 44

5%

R. H. Bogue (Cement & Cement Matnufacture, 1931, p. 288)

3

3 (%)

X2

X3CaOSiO22CaOSiO2

Guttmann & Gille (Zement, 1929, S. 912; 1931, S. 144) Alit

X BogueAlit

Alit( , 22, p. 44,9)

Guttmann & GilleAlitX3CaOSiO2

4 Gutmann & GilleAlit X

2CaOSiO2

Alit3CaOSiO2

Alit

42

4 (d)

4.

(1) X

(2)

(3)( , , ,42500, 479)3CaOSiO2

2CaOSiO2

(4)Guttmann & Gille,Alit

(5), X

(11.5.29.)

43

525 X(-1 645