Testing of Concrete Products

Sabrina Mikhaela Canindo · 42問 · 1年前

通報

問題一覧

The most widely used concrete products in engineering.

Pipes and Masonry Units

are tested to assure uniformity of quality and to check compliance with design and other specification requirements.

Concrete Products

The significant tests performed for concrete products are:

Strength, Water Absorption, Moisture Content

Concrete pipes may be grouped into:

Plain or Unreinforced Pipe, Reinforced Pipe

Intended for the conveyance of sewage, industrial water, irrigation water, and storm water.

Plain or Unreinforced Pipe

Intended for the construction of culverts and pressure conduits with low internal hydrostatic head, as well as for the conveyance of sewer, irrigation water, industrial water, and storm water with low internal operating head.

Reinforced Pipe

Uses of RCP:

For Conveyance of Industrial Waste, For Conveyance of Sewage, For Conveyance of Storm Water, For Construction of Culverts

Test on RCP:

External Load Crushing Strength (By Three-Edge Bearing Method), Aborption Test

Performed to established that the finish shippable pipe has sufficient strength to withstand the crushing loads stated in the specification.

External Load Crushing Strength (By Three-Edge Bearing Method)

Performed to prove the adequacy of design.

External Load Crushing Strength (By Three-Edge Bearing Method)

Proof of Design.

External Load Crushing Strength (By Three-Edge Bearing Method)

Performed to establish the fact that the finished, shippable pipe meets the absorption limits stated in the specification.

Aborption Test

also called concrete block, cement block, and foundation block.

Concrete Masonry Unit (CMU)

is a large rectangular brick used in construction.

Concrete Masonry Unit (CMU)

are made from cast concrete, example: Portland cement and aggregate, usually sand and fine gravel for high-density blocks.

Concrete Blocks

Include solid load bearing and hollow load and non-load bearing blocks for the construction of building walls, fences, catch basins, manholes, and other purposes.

Concrete Masonry Units

Composition of CHB:

Cement, Mineral Aggregates, Water

should be free from significant amount of deleterious impurities.

Water

Parts of a Masonry Unit:

Core, Stretcher or Face Shell, Header, Web

Arrangements of Masonry Unit:

Running, Common or American, Flemish, English, Stack, English Cross or Dutch

Types of Concrete Hollow Blocks:

Load Bearing, Non-Load Bearing

Used for unplastered exterior wall above grade that may be exposed to weather.

Load Bearing

Thickness ranges from 6-8 inches.

Load Bearing

Capable of carrying super-imposed load aside from their own weight.

Load Bearing

Used as an exterior wall below grade.

Load Bearing

Thickness ranges from 4-6inches.

Non-Load Bearing

Intended for walls, Partitions, Fences, Dividers.

Non-Load Bearing

Carrying their own weight alone.

Non-Load Bearing

Not capable of carrying super imposed load.

Non-Load Bearing

are block that can or intended to carry load aside from its own weight.

Load Bearing Concrete Hollow Block

Easier handling and facility for conducting or steel reinforcement through the hollows.

Load Bearing Concrete Hollow Block

tends to have very limited applications in modern wall construction. Such walls can, however, be quite economical and suitable in some applications.

Solid Masonry, Without Steel Reinforcement

tend to be low and thick as a consequence of their lack of tensile strength.

Solid Unreinforced Masonry Walls

are used for fences, wall partition or divider and this is not intended to carry load.

Non-Load Bearing Concrete Hollow Block

are made from sand, water, cement and pigments, and are not fired like clay tiles, but cured at temperatures of approximately 60 degrees Celsius.

Concrete Tiles

is made from solid concrete.

Concrete Brick

are used to cover the facade of a home, build fences, and enhance the overall beauty of a home's exterior.

Concrete Bricks

are quickly becoming a popular alternative to other home facade materials.

Concrete Bricks

Other types of Concrete Hollow Blocks:

Stretcher, Corner, Double Corner or Pier, Bull Nose

is the most commonly used block in construction.

Stretcher Block

It is laid with its length parallel to the face of the wall.

Stretcher Block

is used for corners at simple window and door openings.

Corner Block

is used for constructing piers pilasters or for any other purpose where both ends of the block would be visible.

Double-Corner or Pier Block

serves the same purpose as a corner block, but it is used where round corners are desired.

Bull-Nose Block

Sustainable Modern Concrete Products:

Fly Ash Concrete, Light-Transmitting Concrete

a sustainable, environment-friendly material.

Fly Ash Concrete

is an inexpensive replacement for portland cement used in concrete, while it actually improves strength, segregation, and ease of pumping of the concrete.

Fly Ash

is used as an ingredient in brick, block, paving, and structural fills.

Fly Ash

is a fine, glass-like powder recovered from gases created by coal-fired electric power generation.

Fly Ash

Two Classifications of Fly ash:

Class F Fly Ash, Class C Fly Ash

with particles covered in a kind of melted glass, greatly reduces the risk of expansion due to sulfate attack, as may occur in fertilized soils or near coastal areas.

Class F Fly Ash

is resistant to expansion from chemical attack, has a higher percentage of calcium oxide, and is more commonly used for structural concrete.

Class C Fly Ash

is a trademark for a translucent concrete building material.

LiTraCon

The technical data sheet from the manufacturer [1] says the material is made of __% concrete and __% by weight of optical fibers.

Light-Transmitting Concrete, 96, 4

was developed in __ by Hungarian architect __ working with scientists at the Technical University of Budapest.

Light-Transmitting Concrete, 2001, Aron Losonczi

known also as translucent concrete.

Light-Transmitting Concrete

Minimum Strength of Concrete Hollow Blocks (INDIVIDUAL) Load Bearing = __ Non-Load Bearing = __ (AVERAGE) Load Bearing = __ Non-Load Bearing = __

5.5 MPA = 800 PSI, 3.34 MPA = 500 PSI, 6.9 MPA = 1000 PSI, 4.24 MPA = 600 PSI

Length of typical CHB.

16 in

Enumeration

Enumeration

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Chapter 1

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C1 part 2

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Chap 3,4

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Chapter 2

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Lesson 1&2

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Chapter 3

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Lesson 3&4

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Chapter 4

Chapter 4

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(2)

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chap2

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draw

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ttr

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g ycu

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Enumeration

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5-8

5-8

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Chapter 5

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Chap 6

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Enumeration

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Enu2

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Chap 8

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chap9

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ECON

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8,9

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10,11

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L10

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L11

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Identification

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Ident

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enu

enu

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officials

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events

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Enumeration

Enumeration

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1-5

1-5

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enu 2

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ENU

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midterm

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Mech E3

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Techno

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enu L1

enu L1

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Mech E2

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1-5

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Book

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Hum 3

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Obtaining Data

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