OBC 2006 › Division B

9.20.3.

Version 0 — in force 31 December 2006

← 9.20.2. 9.20.4. →

Within

9.20.

Subprovisions

In force

Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

In force

Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

OBC 1997 · continues from 9.20.3. — Pro

Base · O. Reg. 350/06 · ext← current

Original — base regulation

OBC 2012 · continues as 9.20.3. — Pro

9.20.3. — Mortar

Content not available for this version.

9.20.3.1. — Mortar Materials

(1) Cementitious materials and aggregates for mortar and grout shall comply with CSA A179, “Mortar and Grout for Unit Masonry”.

(2) Water and aggregate shall be clean and free of significant amounts of deleterious materials.

(3) Lime used in mortar shall be hydrated.

(4) If lime putty is used in mortar, it shall be made by slaking quicklime in water for not less than 24 h or soaking hydrated lime in water for not less than 12 h.

Text · e-Laws consolidated snapshot

9.20.3.2. — Mortar and Grout Mixes

(1) Mortar types shall conform to Table 9.20.3.2.A.

(2) Mortar for glass block masonry shall be,

(a) Type S Portland cement-lime where exposed to the exterior, or

(b) Type S or N where protected from the exterior.

(3) Mortar mix proportions shall conform to Table 9.20.3.2.B., with sufficient water to bring the mixture to a consistency adequate for laying masonry units.

(4) Grout mix proportions shall conform to Table 9.20.3.2.C., with sufficient water to provide a suitable flow to fill all voids completely, without excessive segregation or bleeding.

(5) Except as provided in Sentence (6), mortar shall be used and placed in final position,

(a) within 1.5 h after mixing when the air temperature is 25°C or higher, and

(b) within 2.5 h after mixing when the air temperature is less than 25°C.

(6) Mortar and grout containing a set-control admixture shall be manufactured off-site in a batching plant and shall be used and placed in final position within a time not exceeding the useful life as stipulated by the manufacturer.

(7) Grout used for reinforced masonry shall be placed in accordance with the requirements of CSA A371, “Masonry Construction for Buildings”.

Text · e-Laws consolidated snapshot

Table 9.20.3.2.A. Mortar Use Forming Part of Sentence 9.20.3.2.(1)

Column 1	Column 2	Column 3
Location	Building Element	Mortar Type
Exterior, above ground	Loadbearing walls and columns	S
	Non-loadbearing walls and columns	N or S
	Parapets, chimneys and masonry veneer	N or S
Exterior, at or below ground	Foundation walls and chimneys	S
Interior	Loadbearing walls and columns	N
Interior	Non-loadbearing walls and columns	N

Table 9.20.3.2.B. Mortar Mix Proportions (by Volume) Forming Part of Sentence 9.20.3.2.(3)

Column 1	Column 2	Column 3	Column 4	Column 5	Column 6
Mortar Type	Portland Cement	Lime	Masonry Cement Type N	Masonry Cement Type S	Fine Aggregate (damp, loose-state sand)
S	1	½	-	-	3½ - 4½
	-	-	-	1	2¼ - 3
	½	-	1	-	3½ - 4½
N	1	1	-	-	4½ - 6
N	-	-	1	-	2¼ - 3

Table 9.20.3.2.C. Grout Mix Proportions (by Volume) Forming Part of Sentence 9.20.3.2.(4)

Column 1	Column 2	Column 3	Column 4
Portland Cement	Lime	Fine Aggregate (sand)	Coarse Aggregate
1	0 to 1/10	2¼ to 3 times the sum of the cement and lime volumes	1 to 2 times the sum of the cement and lime volumes