Subhead 1.0: Carriage of Materials

This section details the guidelines for the transportation, handling, and storage of construction materials. Here is a detailed explanation of each clause along with examples:

1.0 General

Directive Authority: The Engineer-in-Charge directs the carriage and stacking of materials.
Contractor's Responsibility: The contractor arranges necessary tools and plants.
Included Activities: Loading within a lead of 50 meters, unloading, and stacking within the same lead.

Example: If bricks are being transported to the site, the contractor ensures they are loaded, transported within 50 meters, unloaded, and stacked as directed by the Engineer-in-Charge.

1.1 Responsibility for Loss or Damage

Careful Handling: All activities should be done carefully to avoid loss or damage.
Recovery: In case of loss or damage, the contractor is liable for recovery at twice the departmental issue rates or prevailing market rates as determined by the Engineer-in-Charge.

Example: If a bundle of steel rods is damaged during unloading, the contractor will be charged twice the cost of the steel rods based on departmental or market rates.

1.2 Mode of Carriage

Determination: The Engineer-in-Charge determines the mode of carriage based on feasibility and economy, whether by mechanical, animal transport, or manual labor.

Example: For transporting sand to a remote site, the Engineer-in-Charge may choose manual labor if mechanical transport is not feasible.

1.3 Lead

Distance Measurement: Distances are measured over the shortest practical route. Exceptions are approved by the Engineer-in-Charge with written reasons.
Manual Labour: Reckoned in units of 50 meters.
Animal/Mechanical Transport: Reckoned in one km units. Distances of 0.5 km or more are taken as 1 km; less than 0.5 km is ignored unless the total lead is less than 0.5 km, which is paid for separately.

Example: If materials are transported by a cart for 1.2 km, it will be calculated as 1 km for payment purposes.

1.4 General Considerations for Stacking and Storage

Storage Layout Planning: Proper planning is required for storage layout considering material requirements at different construction stages.
Material Preservation: Materials must be stored to prevent deterioration or intrusion of foreign matter.

Example: Cement bags should be stored on raised wooden planks to avoid moisture from the ground, as illustrated in Fig. 1.1 of the document.

1.5 Protection against Atmospheric Agencies

Protection Measures: Materials should be protected from rain, sun, wind, and moisture to avoid deterioration.

Example: Steel bars should be covered with tarpaulin sheets to protect them from rusting due to rain.

1.6 Protection against Fire and Other Hazards

Fire Safety: Materials like timber and paints should be stored to prevent fire hazards. Inflammable materials like kerosene and petrol must be stored following relevant safety regulations.

Example: Storing kerosene in a well-ventilated shed away from any source of ignition to prevent fire hazards.

1.7 Stacking and Storage of Materials

Specific Guidelines for Different Materials:
- Cement: Stored in a dry, leakproof shed with bags stacked off the floor on wooden planks.
- Aggregates: Stored on hard, dry, and level ground to prevent contamination.
- Steel: Stored to avoid distortion and corrosion, preferably coated with cement wash if stored for long.

Example: Cement bags are stacked close together on wooden planks to avoid air circulation and moisture contact. A space of 600 mm is left around the stacks for ventilation.

1.27 Measurements

Measurement Criteria: Length, breadth, and height of stacks are measured to the nearest cm. The volume is worked out in cubic meters, reducing percentages for looseness.

Example: A stack of earth measured as 2 cubic meters may be reduced by 20% for looseness, resulting in a net quantity of 1.6 cubic meters for payment.

1.28 Rate

Inclusive Operations: The rate for carriage of materials includes all operations such as loading, transport, unloading, and stacking.

Example: The quoted rate for transporting and stacking bricks includes the costs of all activities from loading to stacking at the site.

Summary

Subhead 1.0 provides comprehensive guidelines for the safe and efficient carriage, stacking, and storage of materials at construction sites. It ensures materials are handled responsibly, stored properly to maintain quality, and protected from environmental and safety hazards.

Wed Jul 3, 2024

Subhead 1.0: Carriage of Materials