Construction Materials Flashcards

Flashcards covering key concepts from construction materials lectures.

American Concrete Institute, providing minimum requirements for structural concrete design and construction.

What is ACI?

American Institute of Steel Construction, a technical institute for structural steel use.

What is AISC?

National Structural Code of the Philippines, the local counterpart of ACI 318.

What is NSCP?

American Society for Testing and Materials International, which publishes voluntary consensus technical standards.

What is ASTM?

American Association of State Highway and Transportation Officials, a standard-setting body for highway design and construction.

What is AASHTO?

Philippine National Standards, formulated by the Bureau of Product Standards (BPS).

What is PNS?

International Code Council Evaluation Service, which evaluates building products and components.

What is ICC ES?

Construction Material Testing Laboratories, assessed against ISO/IEC 17025:2005.

What are CMT laboratories?

Water, cement powder, coarse aggregates (gravel), fine aggregates (sand), and admixtures.

What are the main components of concrete?

Hydraulic cements that react and harden chemically with the addition of water.

What are Portland cements?

Coarse aggregates (larger than ¼ inches) and fine aggregates (smaller than ⅜ inches).

What are the two basic types of aggregates?

Materials added to concrete to alter its properties, such as air entrainment and set time.

What are chemical admixtures?

Include fly ash, hydrated lime, and silica fume, improving concrete's workability and strength.

What are mineral admixtures (pozzolanic materials)?

Workability, cohesiveness, strength, and durability.

Name the four main properties of concrete.

Plastic, setting, and hardening.

Name the three different states of concrete.

Keeping concrete at a suitable temperature and moisture level to achieve appropriate qualities.

What is concrete curing?

Compaction, curing, weather, type of cement used , and the water to cement ratio.

What affects the strength and durability of concrete?

The workability of concrete.

What does the slump test show?

The compressive strength of hardened concrete.

What does the compression test show?

Color variation, crazing, dusting, rain damage, spalling, efflorescence, honeycombing, and blistering.

What are some defects in concrete?

Plastic Settlement Cracks, Plastic Shrinkage Cracks, Formwork Movement, and Thermal Shock.

Give examples of Pre-Settlement Cracks.

Hardwood, softwood, and manufactured board.

What are the three types of timber?

Physical properties are different with respect to the three major orthogonal planes.

What makes wood anisotropic?

Ratio of oven dry mass of wood to volume of wood.

What is Wood Density?

Exposure to light, exposure to moisture and heat cycle, change in moisture content, attack by insects and decay fungi.

What are the causes of Wood Deterioration?

Natural or Synthetic substance composed of Macromolecules with repeated monomers.

What materials are polymers made out of?

Building structure by laying individual units (bricks, stone, concrete block) and binding them (by cement mortar or rebar).

What is masonry?

Man-made materials used to improve soil conditions, typically made from petrochemical-based polymers.

What are Geosynthetics?

Slab, Column, Beam, Wall,(Mat) Foundation, (Isolated) Footing.

Give examples where Reinforcement Steel are typically applied.

Plain Bars, Deformed Bars, Dowels at expansion joints, Contraction joints at roads and runways, Main reinforcements, Stirrups and ties, and Structural Framework.

What are rebars composed of?

Tie Wire is used to hold rebar in place to ensure that when concrete is placed, the bars do not shift out of position.

What is the purpose of Tie Wire in Rebar Installation?

Earthen Roads, Gravel Roads, Cement Concrete Roads, Bituminous Roads, and Asphalt Roads.

What are the Types of Road Classifications