AMD-2Amendment No. 2 september 2005

TO mtoji

IS 456 : 2000 PLAIN AND REINFORCED CONCRETE — CODE OF PRACTICE

( Fourth Revision )'

( Page 13, clause 5.2.1.1, line 1 ) — Substitute 'IS 3812 (Part 1)' for 'Grade 1 of IS 3812'.

( Page 13, clause 5.2.1.2 and corresponding Note ) — Substitute the following for the existing:

*Silica fume conforming to IS 15388 may be used as part replacement of cement provided uniform blending with the cement is ensured.

NOTE— Silica fume is usually used in proportion of 5 to 10 percent of the cement content of a mix.'

(Page 13, Note under clause 5.2.1.3, line 5) — Substitute 'be' for 'range from being'.

( Page 25, clause 10.3.3, line 4 ) — Delete the word 'and'.

(Page 65, clause 34.2.4.2, line 1)—Substitute 'on' for 'or'.

[ Page 65, clause 34.3.1(a), line 2 ] — Delete the words 'extending in each direction'.

(Page 66, clause 34.4.3, line 5)—Substitute 'not' for 'no'.

(Page 78, Annex A)-Substitute the following for the existing entries for IS 3812: 1981:

IS No.

Title

IS 3812 (Part 1) : 2003 Specification for pulverized fuel ash : Part 1 For use as pozzolana in cement, cement mortar and concrete (second revision)

( Page 79, Annex A ) — Add the following at the end:

(Page 81, Table 21) - Insert the following row after the last row:

( Page 91, Table 26, Case No. 2, col 2 ) — Substitute 'One Short Edge Discontinuous' for 'One Short Edge Continuous'.

[ Page 96, G-1.1(c), formula ] — Substitute ' $M_{\text {uim }}$ ' for ' $M_{\text {u'lin }}$ '.

[ Page 96, G-1.1(d), last line ] — Substitute '38.1' for '39.1'.

(CED 2)