Masonry Magazine December 1979 Page. 21

Masonry Magazine January 1979 Page.21

Masonry Magazine January 1979 Page.21
b.
Attendance is mandatory for:
(1) General contractor job superintendent.
(2) Masonry subcontractor job superintendent.
(3) Masonry subcontractor foreman.
(4) At least two masons.
(5) Authorized representative of the brick supplier.
(6) Mortar material suppliers.


D.
Job Site Quality Control:


1.
Site control brick and mortar tests:


# a.
Use compressive strength of brick units and compressive strength of mortar cubes to control quality.


# b.
Test brick in accordance with site control requirements, Section 1.02.A.


# c.
Test mortar cubes in accordance with mortar section.


# d.
Test five brick and three mortar cubes for each 100,000 brick or fraction thereof.


# e.
Brick and mortar to be selected at random by the Architect/Engineer.


# f.
Site control data shall be acceptable if material exceeds specified strength.


# g.
Cost of tests shall be borne by the General Contractor.


1.
Site control brick and mortar batching:


# a.
Use compressive strength of brick units and control on material proportions used in batching mortar to control quality.


# b.
Test brick in accordance with site control requirements, Section 1.02.A.


# c.
Control mortar batches to conform to proportion specification specified in mortar section.


# d.
Test five brick for each 100,000 brick or fraction thereof.


# e.
Site control data shall be acceptable if brick compressive strengths meet the requirements of Part II and mortar is batched to proportion specification.


# f.
Cost of tests shall be borne by the General Contractor.


1.02.C.3.b
Invitations to attend should be extended to others, such as inspectors (local building department and other government agencies) and Owner.


1.02.D.1.c
Type M. S or N as specified in the mortar section. More than one mortar type may be specified. If so, provide sections to cover all requirements. Mortar design compressive strengths should be based on laboratory tests of mortar made from materials mixed to the proportion specification as required by the mortar section.


1.02.D.1.e
As calculated by the Structural Engineer. May vary for different parts of the building. If so, provide sections to cover all design strengths.


PART II - PRODUCTS


2.01 BRICK


# A.
Facing Brick:



1.
Delete Note and replace with:


2.01.A.1
Grades and Types. Brick subject to the action of weather or soil, but not subject to frost action when permeated with water, shall be of grade MW or grade SW, and where subject to temperature below freezing while in contact with soil shall be grade SW. Brick used in loadbearing or shear wall construction shall comply with the dimensional and distortion tolerances specified for type FBS of ASTM C 216 Where such brick do not comply with these tolerance requirements, the compressive strength of brick masonry shall be determined by prism tests.


Masonry Magazine December 2012 Page. 45
December 2012

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Masonry Magazine December 2012 Page. 46
December 2012

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Masonry Magazine December 2012 Page. 47
December 2012

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Masonry Magazine December 2012 Page. 48
December 2012

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