Methods and Materials
Which of the following ASTM tests involves weighing the sample aggregate heating it until it is dry and then reweighing it
ASTM C566
The ___ test is used to ascertain the resistance to wear of hardened concrete samples
Abrasion
A(n) ____ admixture speeds up the strength development of concrete
Accelerator
____ is a branch of physics that deals with the generation transmission and control of sound waves
Acoustics
Concrete placement occurs ____ the base for on-grade pours is ready or the forms for walls, and beams are erected and reinforcing is in place
After
____ admixtures are used to entrain microscopic, air bubbles in concrete
Air-entraining
Concrete is usually prepared in _____
Batches
Typical ____ connections include the use of dowels or haunches
Beam-to-column
____ of soil refers to mixing imported material with the original using various tools to cut through the soils and provide consistent mixing
Blending
The ___ test is used to determine the water and cement content of fresh concrete
Cement Content
____ are temporary watertight enclosures used either in water-bearing soil or directly in water
Cofferdams
_____ of soil refers to increasing its density by mechanically forcing the soil particles closer together
Compaction
The ___ of mortar depends mainly on the type and quantity of cementitious material used in the mortar
Compressive strength
Which of the following is a better support for bottom steel in a reinforced concrete slab resting directly on the grade
Concrete
Poured in place concrete reaches design strength after 28 days of ____
Curing
The loads that a building imposes on the foundation can be divided into two categories which are they
Dead and Live
The weight of the actual materials of construction walls floors and roofs and finishes is known as the ____
Dead load
____ is the traditional method of project delivery that moves sequentially from conception of a project through its construction
Design-bid-build
____ techniques involve lowering the level of subsurface water on a site to allow excavation to occur in a dry and stable environment
Dewatering
Historically, the main remediation strategy for damaged sites was the removal of contaminated materiel to special, contained landfills, a procedure known as ___
Dig and dump
____ hammers use a heavy weight lifted up vertical rails called leads
Drop
The modulus of ____ is a proportional constant between stress and strain
Elasticity
_____ is a green building certification program administered by the United States environmental protection agency
Energy Star
_____ describes the washing or wearing away of soil through the actions of wind and water as well as equipment and foot traffic
Erosion
In addition to the purely technical information, division ___ of the specifications outlines the guidelines for the pre-construction phase of the project
00
About 10% of the water will be placed into the mixing drum then the solid ingredients and more water - reserving about ____ of the water to be added after the solid ingredients
10%
The concrete mixed and delivered by a mixing truck must be delivered and discharged before the drum revolved ____
300 Times
Which master format division is soil located within
32
Approximately _____ pollutants identified in very common building materials are known to cause asthma, cancer and reproductive and nervous disorders
500
Studies have found that humans now spend more than ___ of their time indoors
80%
_____ survey establishes the true property lines and corners of a parcel of land
A boundary
A ____ foundation cannot be typically placed too close to the edge of a site because the foundation cannot extend across the property line
False
According to the USCS classification system, SW soil is rated fair as a sub-grade material and poor as a surfacing material
False
Caissons, like piers, use friction as well as end bearing in order to perform their function
False
Columns cannot be typically placed too close to the edge of a site because the foundation cannot extend across the property line
False
Concrete compression strength determined by the compression strength of the cement used in the mixture
False
Concrete sets up due to the evaporation of the water in the concrete mixture
False
Post tensioned connections will use tendons that must always be bonded to the unit with grout
False
When a load is placed on a pre-stressed beam the chamfer tends to flatten out and the beam is still in compression
False
Resistance of a material to a cyclic load one that varies in direction and or magnitude is called
Fatigue strength
An earthquake is caused by the slippage of the earth along a ____
Fault plane
_____ foundations are reinforced concrete slabs several feet in thickness that cover the entire footprint of a building
MAT
Construction specifications for building and other project are written using the
Master-format system
A sand sample with a cumulative percentage of 2.75 would be graded as which of the following
Medium
______ should be located over known active geological faults
No buildings
____ units are cast in molds in a plant, then cured and shipped to the job site
Non-pre-stressed
_____ initiated the regulation of safety standards for the construction industry
OSHA
____ construction has the slab supported on two sides by beams or load bearing walls
One way solid slab
_____ is a measure of the amount of water that passes through channels running between the outer faces of the concrete
Permeability
_____ foundations use long wood, concrete or steel piles that are driven into the earth
Pile
____ piles utilize heavy gauge steel pipes that are driven with an open end
Pipe
____ consist of large molecules composed of repeating structural units connected by chemical bonds
Polymers
Predominantly granular soils that have minute amounts of clay particles can be stabilized by blending them with
Portland cement
____ units have stresses introduced before they are placed under a load
Pre-Stressed
During the ____ phase, the architect, other design consultants and the owner mutually determine the goals and objectives of the project
Pre-design
A ____ test requires that a steel rod with an enlarged end be cast in the concrete
Pull-out
_____ may rest on a continuous concrete footing below grade such as a basement wall or extend forming the exterior or interior walls of a building
Reinforced concrete cast in place walls
A ___ is derived from living plant animal or ecosystem that has the ability to regenerate itself
Renewable Materiale
____ refers to the equipment, cables, slings, and other hoisting equipment used to lift precast units into place
Rigging
According to the USCS classification system Silty sands sand silt mixtures describe ____ soil
SM
____ in the form of sheet metal piling lagging and slurry walls is used to hold up the face of an excavation
Sheeting
____ drawings are substantially different from architectural drawings in style and content, including manufacturing conventions and special fabrication instrctions
Shop
____ is a measure of the relative density of an aggregate
Specific gravity
The construction documents include a written manual called the
Specifications
When a building load, or force, acts on a building components such as a column, the components takes on an internal resistance to the force known as
Stress
The ____ system consists of a series of concrete joists cast at right angles to each other to form a grid
Two way joist framing
The _____ was developed by U.S. army corps of engineers to classify soils for use in roads, embankments and foundations
Unified soil classification system
_____ is Unchecked land development that places tremendous burdens on natural systems
Urban sprawl
Type ____ portland cement is used only in concrete that is exposed to sever sulfate conditions
V
What aggregates would be used to produce lightweight insulating concrete
Vermiculite, fly ash, Pumice, Crushed shale
____ admixtures reduce the amount of water needed to produce concrete of a given consistency
Water-reducing
____ in concrete construction are used for providing construction, contraction, and expansion as for creating the perimeter of any penetration in a concrete wall
Waterstops
_____ are local land-use regulations written into municipal law that regulate the degree of building development according to land use
Zoning Ordinances
____ types of asphalt paving are in common use
Four
According to the USCS classification system clayey gravels, gravelly sands, little or no fines describe ____ soil
GC
____ agents are added to concrete or grout to cause a slight expansion in it before it hardens
Gas-Forming
Both specialty and subcontractors are independent contractors employed by the ____ to perform specific work at a specific cost
General Contractor
____ is the act of remodeling the existing land form to provide a level area for a structure, create circulation paths and create drainage and landscape features
Grading
____ was introduced to incorporate new environmentally friendly products and construction procedures that were previously not included
Greenformate
The ____ is a process by which the earths atmosphere traps solar radiation causing a gradual increase in global temperatures
Greenhouse effects
Concrete with barite, limonite, and magnetite and specified in ASTM C637 is which of the following
Heavy weight concrete
_____ slabs are used for spans ranging up to 40 ft. in length and are 6 to 12 in. thick
Hollow Core
____ is a relatively new design approach that attempts to bring together all the diverse participants of a project at the beginning of the design phase
Integrated Design Process
The ____ establishes minimum regulations for commercial building systems using both prescriptive and performance related provisions
International Building Code
The ____ rating system provides a tool that simultaneously guides and evaluates a building over its entire life cycle, from project inception through building operation
LEED
Clays and silty clay soils can be stabilized through the addition of _____ which produces a chemical reaction
Lime
When a material is subjected to a change in ____ it may expand contract conduct or reflect heat
Temperature
The purpose of ____ is to promote the development of housing in the nations communities
The department of housing and urban develpment
____ is the world body that coordinates the production of engineering and product standards for worldwide use
The international organization for standardization
____ is a form of site-cast concrete where wall panels are cast horizontally on the slab and then raised vertically into place
Tilt up concrete
A ____ test ascertains the consistency of a soil sample near the plastic limit
Toughness
A ___ is a organization whose membership comprises manufacturers or businesses involved in the production or supply of materials and services in a particular area
Trade organization
A pipe piles are driven into the soil earth inside the pipe is removed in order to reduce the resistance
True
Air entraining agents reduce permeability
True
Color can be added to concrete in the form of a dry shake applied to the wet concrete after which the surface is troweled and cured
True
In a concrete mixing truck, revolutions over 100 are slower so as to prevent the concrete from over mixing
True
The cables in a pre tensioned beam produce high compressive stresses in the lower part of the uni and tensile stress in the upper part
True
Welded wire mesh reinforcing is used primarily for crack control in slab-on-grade construction
True
_____ Construction utilizes a flat slab supported by thickening the slab at each column with a drop panel and a capital
Two way flat slab
____ are hot rolled steel rods that may be plain or deformed
reinforced bars
