- Which component occupies the most weight and volume in concrete?

Cement

Sand (Fine Aggregate)

Crushed Stones (Course Aggregate)

Water

- Low Heat Portland Cement is preferred in mass concrete work such as dams because...

Rapid hardening of concrete is required for such structures

They have higher ultimate strength

Development of cracks is minimized

- In the making of concrete,

Water reacts with stones to give the strength to concrete.

Stones and sand react with each other to give the strength to concrete.

Cement reacts with sand to give strength to concrete.

Cement reacts with stone to give strength to concrete.

Cement reacts with water to bind all the materials together that give strength to concrete.

An old building has been purchased for conversion into a historical restaurant. The local the local historical committee is a major stakeholder as they are showing interest and have become involved. A schedule contingency reserve has been suggested. Describe how you

would manage this risk using each of the strategies below:

a. Sharing
b. Mitigation

c. Avoidance

d. Acceptance

*a*s*d*f*g*AGGREGATE EXPERIMENTS

QUESTION 1: Grain distribution in aggregates; is calculated
a) By which experiment (with procedure and experiment instruments)?
b) How (explain calculations, show on the table)?

*****-*-*-*-*-*-*-CONCRETE MIX DESIGN AND PRODUCTION

QUESTION 1: If the amount of material required for 1m 3 concrete has been calculated, how do you
produce the desired concrete in the laboratory. Write step by step.
The amount of material required for 1m 3 concrete
No 1. Aggregate: W a1 , kg
No 2. Aggregate: W a2 ,kg
No 3. Aggregate: W a3 ,kg
Cement Weight: W cem ,kg
Water Amount: W water, ,kg

**a**s*****d**f***CEMENT EXPERIMENTS

QUESTION 1: The strength class of the cement is determined by which experiment, how is it
calculated ?
(Materials, experiment instruments, preparation and procedure, experiments and calculations)

From your observation at your own residential area or your accommodation buildings, identify the current building features that need to be changed or to be constructed new in order to conform to Green Building Index. The features should include the following GBI criteria, i.e. Energy Efficiency (EE), Indoor Environment Quality (EQ), Sustainable Site Planning & MANAGEMENT (SM), Materials & Resources (MR), Water Efficiency (WE), Innovation (IN).

Life Cycle Assessment (LCA) is a tool to evaluate and quantify the impacts of a product to the environment. Watch the “Prius Life Cycle” video on Youtube. From the video and your understanding the concept of LCA, describe how the evaluation of LCA is carried out for a Prius car, which is a product from the Toyota company, Japan.

What are the economic aspects for the tile & brick industry explain briefly

Using a flow chart diagram EXPLAIN in detail the various proformas used for preparation and implementation of development schemes. All the proformas should be in proper sequence and with sufficient details showing purpose and requirements of each proforma. The flow chart diagram can be drawn on a paper or any computer tool can be utilized for this purpose. The diagram should be sufficiently detailed and shouldn't be a copy of already available figures.

1. Define the terms "geodetic height", "geoidal height", and "orthometric height", present the equation that expresses the relationship between the geodetic height and orthometric height, and state which one these heights are measured by GNSS survey method.

2. What are the geocentric coordinates in meters of a station which has a latitude of 44°53′52.1918′′ N, a longitude of 68°40′07.3487′′ W and height of 130.405 m (use the WGS84 ellipsoidal parameters)?

3. The geodetic heights of two stations are 324.685 m and 309.879 m, and their orthometric heights are 356.496 m and 341.707 m, respectively. These stations have model-derived geoid heights of −31.828 and −31.836, respectively. What is the orthometric height of a station with a GNSS measured height of 305.645 m and a model-derived geoid height of −31.802 m?

4. A GNSS survey has a reported error of ±(12mm + 2ppm) at a 95% probability. What is the error for a control baseline with a length of 4 miles at the 95% probability?

write several reasons to point the importance to do lab Testing for materials in structural engineering and point out why their theoretical values cannot be fully trusted before they can be allowed to be used in a project?

The site of a proposed north-south road will cut through the western side of a hill. The proposed cutting is 13 m high with a batter angle of 70 degrees. The site has been drilled by a single diamond drill hole. In the drill hole, 10 m of dolerite overlies 5 m of sandstone. RQD for the dolerite is 80% and RQD for the sandstone is 50%. There was 20 cm of core loss at 5 m and 40 cm of core loss between 9.6 m and 10 m. Core samples were sent off for UCS measurements and came back with UCS for dolerite = 150 MPa and UCS for sandstone = 80 MPa. What further information do you need to consider the stability of the proposed road cutting? Suggest both geophysical and geological techniques that you could use in your assessment and why they would be useful.