CS 3:2013 Amendment No. 1/2013 October 2013 Construction Standard CS3:2013 Aggregates for Concrete The following amendments are made to CS3:2013: 1.Section 4, Clause 4.2.1, 1st paragraph : add when before determined in accordance with 2.Section 6, Clause 6.2.2, 1st paragraph : delete (c)(1)(v) Los Angeles value and renumber (vi) Ten per cent fines value as (v) Ten per cent fines value (vii) Oven-dried particle density as (vi) Oven-dried particle density (viii) Water absorption as (vii) Water absorption (ix) Magnesium sulphate soundness value as (viii) Magnesium sulphate soundness value (x) Alkali-silica reactivity as (ix) Alkali-silica reactivity (xi) Water-soluble chloride ion content as (x) Water-soluble chloride ion content (xii) Presence of organic substances as (xi) Presence of organic substances 3.Section 10, Clause 10.4, after Table 10.1 : renumber (a), (b) and (c) as (e), (f) and (g) respectively 4.Section 10, Clause 10.6.2.1, 3rd paragraph : change all (see note 2) to (see note 4) The Standing Committee on Concrete Technology Development Bureau The Government of the Hong Kong Special Administrative Region 21 October 2013