Construction Materials Testing Module 1

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Questions and Answers

What is the main purpose of testing construction materials before use?

To increase the cost of construction

To enhance aesthetic appeal

To identify potential problems (correct)

To expedite the construction process

Which organization is recognized for standardizing material testing methodologies?

International Construction Council

Department of Public Works and Highways

Philippine Bureau of Standards

ASTM (correct)

What is a safety protocol mentioned for laboratory work?

Wear safety goggles only during experiments

Turn off all equipment after usage (correct)

Always leave equipment running

Prohibit first aid kit usage

Which of the following is a consequence of using sub-standard construction materials?

Legal penalties (B) Signup and view all the answers

What is the role of the Bureau of Research and Standards?

To govern and enforce construction material standards (B) Signup and view all the answers

Which of the following is NOT part of the safety protocol in the laboratory?

Borrowing equipment without permission (D) Signup and view all the answers

Which type of wood is considered less suitable for high wind areas?

Softwood (C) Signup and view all the answers

What is the primary responsibility of the members involved in the development of ASTM standards?

To identify problems and propose revisions (A) Signup and view all the answers

What standard specification number corresponds to Portland cement?

PNS 7:2005 (C) Signup and view all the answers

Which of the following ASTM standards pertains to the determination of particle size distribution in aggregates?

ASTM C136 (C) Signup and view all the answers

What is prohibited in the laboratory setting according to the guidelines?

Eating (A) Signup and view all the answers

How many countries have adopted ASTM standards?

12,800+ (D) Signup and view all the answers

What does ASTM C39 specifically test?

Compressive and flexural strength of concrete (D) Signup and view all the answers

What is the main role of a laboratory assistant or faculty member when operating the UTM and oven?

To ensure safety and compliance (B) Signup and view all the answers

Which ASTM standard method is used for determining the slump of hydraulic-cement concrete?

ASTM C143 (A) Signup and view all the answers

Which process must occur first in the development of a new ASTM standard?

Identification of a problem (D) Signup and view all the answers

What is the primary goal of the course mentioned in the content?

To familiarize and train students in standard testing procedures of construction materials. (A) Signup and view all the answers

Which construction materials are emphasized for testing in this course?

Cement, sand, gravel, concrete, masonry, steel, and wood. (A) Signup and view all the answers

Why is reinforced concrete commonly used for construction in the Philippines?

It is less expensive than other materials. (B) Signup and view all the answers

What kind of structures typically use structural steel as a material?

Tall buildings and large warehouses. (A) Signup and view all the answers

What challenges do masonry structures face in the Philippines?

Weakness against lateral forces from high winds and earthquakes. (C) Signup and view all the answers

What is a common characteristic of structural steel materials used in construction?

They consist of hot-rolled steel shapes like I beams and C channels. (A) Signup and view all the answers

How are masonry structures classified in terms of engineering?

Non-engineered and low-cost. (B) Signup and view all the answers

What is an essential advantage of taking the DPWH-BRS Materials Engineering examination?

It enables civil engineers to manage construction projects more effectively. (A) Signup and view all the answers

What is the minimum requirement for the accreditation of materials engineers?

Must be a registered and licensed Civil Engineer (D) Signup and view all the answers

What is the score threshold for automatic accreditation as Materials Engineer I?

60% (C) Signup and view all the answers

What type of examination must all materials engineer applicants undergo?

Both written and practical examinations (B) Signup and view all the answers

Who is prohibited from taking the materials engineering accreditation examination?

DPWH Engineers and other government engineers (C) Signup and view all the answers

Where is the practical examination for upgrading to Materials Engineer II conducted?

At the Bureau of Research and Standards or a DPWH Regional Office (C) Signup and view all the answers

What happens to applicants who score below 60% on the written examination?

They are disqualified from the accreditation process (A) Signup and view all the answers

Which of the following is true regarding the accreditation of foreign applicants?

The minimum requirement may be extended to them (A) Signup and view all the answers

Which aspect is covered in the practical examination for upgrading to Materials Engineer II?

Sampling and testing procedures of construction materials (B) Signup and view all the answers

What is the minimum score required in the Practical Examination for an Accredited Materials Engineer I to qualify as Materials Engineer II?

75% (B) Signup and view all the answers

What is the consequence for an Accredited Materials Engineer I who fails to upgrade to Materials Engineer II after two successive attempts?

They will be barred from taking the exam for one year. (A) Signup and view all the answers

What is the assignment limit for a Materials Engineer I on a single project?

One project costing not more than P150M. (D) Signup and view all the answers

How many projects can a Materials Engineer II be assigned if the aggregate cost does not exceed P300M?

Two projects. (D) Signup and view all the answers

What requirement must an accredited Contractors’/Consultants’ Materials Engineer fulfill to gain accreditation as a DPWH Materials Engineer?

They must pass both a written and practical examination. (D) Signup and view all the answers

What happens to DPWH engineers who score 60% or above but are separated from government service?

They can be accredited as Contractors’/Consultants’ Materials Engineers I without further examinations. (A) Signup and view all the answers

How many projects with an aggregate cost of not more than P200M can a Materials Engineer I be assigned?

Three projects. (C) Signup and view all the answers

What is a requirement for an accredited Materials Engineer to be automatically conferred the rank of Materials Engineer II?

Undergo a practical examination. (D) Signup and view all the answers

Study Notes

Course Goals and Importance

Course aims to train students in standard testing procedures for common construction materials.
Prepares students for the DPWH-BRS Materials Engineering examination, crucial for civil engineers in construction.
Emphasizes testing materials (cement, sand, gravel, concrete, masonry, steel, wood) to assess physical and mechanical properties.
Highlights importance of material testing to identify potential construction issues and ensure safety.

Construction Classifications in the Philippines

Reinforced Concrete: Most commonly used due to cost-effectiveness; combines concrete with steel reinforcing bars.
Structural Steel: Preferred for large warehouses and factories; includes hot-rolled steel like I beams and C Channels.
Masonry: Typically used for bungalows; vulnerable to lateral forces, often considered non-engineered.
Wood: Cost varies by type; safer against earthquakes but weaker in high winds; requires pre-use testing.

Standards and Specifications

Materials testing is regulated by ASTM standards, widely adopted in the Philippines, with over 12,800 standards available in English and SI units.
DPWH-BRS provides standard specifications for construction materials in public works projects.
Usage of sub-standard materials is legally punishable.

Testing Standards and Methods

Relevant ASTM standards include procedures for determining particle size, moisture content, and density for aggregates.
Other key tests assess compressive strength of concrete and masonry specimens, ensuring material integrity and performance.

Safety and Laboratory Protocols

Prioritizes safety; unnecessary tasks in the lab are prohibited, and proper equipment handling is mandated.
First aid kits are available, and lab supervision is required when operating specific equipment like UTM and ovens.
Cleanliness is essential; all equipment must be cleaned after use.

Accreditation and Examination for Materials Engineers

Minimum requirement for accreditation: must be a registered and licensed Civil Engineer.
Written examination grading converts raw scores to a percentage; Practical examinations assess real-world testing capabilities.
Limits on assignments based on engineer classification (I or II) ensure manageable project oversight.

Project Assignment Limits for Engineers

Materials Engineer I: Can oversee one project ≤ P150M, two projects ≤ P250M, or three projects ≤ P200M.
Materials Engineer II: Can manage one project without cost limit or two projects ≤ P300M, or three projects ≤ P250M.

Key Regulations and Updates

Department Order No. 098 Series of 2016 mandates adherence to DPWH specifications for all relevant infrastructure projects.
DPWH guidelines prevent government engineers from engaging as private consultants while employed.

Conclusion

Knowledge of testing standards, materials classifications, safety protocols, and accreditation criteria is vital for aspiring civil engineers in the construction industry.

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Description

This quiz covers the basics of standard testing procedures for common construction materials as outlined in Module 1. It aims to prepare students for the DPWH-BRS Materials Engineering examination, an essential credential for professional civil engineers in the construction industry.