answer the question based on the lectures files
CM 3110
Don't use plagiarized sources. Get Your Custom Essay on
masonary construction
Just from $13/Page
NAME:
Masonry Specifications
Corporate Center II
|
1. What items does specification section 04255 include?
|
|
2. What has to be included in the mock up panels?
|
|
3. Are you allowed to have the frog exposed?
|
|
4. What type of cement is used in the mortar?
|
|
5. What type of Lime?
|
|
6. Aggregate required for white mortar?
|
|
7. Where is joint reinforcement required?
Anchors?
|
|
8. Why are the masonry veneer anchors 2-piece?
|
|
9. What are the bond breaker strips made of?
|
|
10. Do the weep holes include tubing?
Length?
|
|
11. Where are weep holes to be provided?
|
|
12. Cleaning masonry is typical process after completed. What is the specified solution? What has to be done before applying the solution?
|
|
13. Is the mortar mix property specification or proportion specification?
|
|
14. What type of masonry mix is required for below grade and/or for masonry in contact with earth?
|
|
15. What is the IAR of clay masonry (numerical value)?
|
|
16. What is the bond pattern for concealed masonry?
|
|
17. What type of expansion joint is required beneath masonry veneer supports?
|
|
18. What are the lintels made of and where are they required?
|
|
19. What is the joint width and pattern?
|
|
20. What is the masonry veneer anchored to and what is the spacing?
|
|
21. Where is flashing required and does it have to be sealed?
|
MASONRY
Materials and Methods
Masonry, an assembly of building units held together with mortar, is a class of construction that dates back to the beginning of recorded history. 4 of the 7 wonders of the ancient world, including the pyramids of Egypt, were masonry structures. The materials and methods used have not changed that much since then. Essentially masonry consists of setting individual building units in a bed of mortar, one after another. A variety of shapes, patterns, and sizes can be incorporated into a single homogeneous structure. Common building units include brick, stone, and concrete masonry units.
Mortar
Sand, lime, cement, water
Important properties
Strength
Workability
Compatibility
Cements – I, II, III
Mortar Types M, S, N, O
Grout
Aggregate grading is different from mortar
Used for filling cells of concrete units and other leveling uses
Masonry Joints
Struck
Weather
Flush
Raked
Stripped
Vee
Concave
Brick Manufacture
The process of making brick generally consists of the following steps: Gathering, crushing, grinding, screening, and mixing the raw materials; making the brick; and setting, drying, firing, packaging and inventorying the final product.
Molded – Dried – Burned in kilns
Methods
Extruded
Molded
“green” brick
Firing brick in kiln
dried brick
Brick Shapes & Sizes
6 surfaces
4 x 2 2/3 x 8 (nominal includes mortar joint)
3 5/8 x 2 ¼ x 7 5/8
Cored brick
Quality & Grades
Building brick
Face brick
Strength – durability – appearance
Severe weathering SW
Moderate weathering MW
Negligible weathering NW
Brick Bonds
re: p. 567-569
Brick Positions
Bricklaying
Efflorescence
Salts in brick or mortar that leach out due to penetrating water
Expansion Control
To relieve stresses
Located at offsets and intersections
Expansion/Control Joints
Masonry Accessories
Reinforcing
horizontal
vertical
Wall ties
Flashing
External – prevents water penetration at points where walls intersect flat surfaces (roofs)
Internal – built into & usually concealed in wall
Should be installed
Above grade in exterior walls
Under & behind window sills
Over lintels
Over spandrel beams
Projections or recesses from face of wall
Under parapet copings
Intersections of roof & wall
Roof projections
Around chimney & dormers
Masonry Construction
CMU
Stone
Accessories
Glass Block
CMU
Classifications
Hollow
Load bearing
Solid load bearing
Non-load bearing
Grades
N severe weather
S required protection
Dimensions & sizes
Special shapes
Surface finish/patterns
Surface treatment
CMU Walls
Load bearing walls
Stability
Bond Beams & Lintels
Purpose
Structural members
Continuous
Stone Masonry
Stone
Granite, sandstone, limestone, marble
Quarried – milled – plane
Finishes
Split face
Sawed
Smooth
Thermal (or flame)
Rubbed & honed
Polished
Setting
Joints
Pointing
Patterns/courses
Methods of lifting
stone blocks
Stone Accessories
Bonding and Anchoring stone masonry
Glass Block
Pre-assembled
Special effects
