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