HOLLOW CORE SLAB
Hollow core slabs are pre-stressed concrete elements that are generally used for flooring in construction of all building sizes including residential buildings, department stores, warehouses, and industrial plants.GENERAL SPECS FOR CMK PRESTRESSED CONCRETE SLABS OF SIZE 5 CM TO 25 CM
Manufactured according to industrial standard (TIS. 828-2546)
The minimum ultimate compressive strength of a concrete cube after 28 days is 400 ksc. (40 MPa)
The minimum ultimate compressive strength of a concrete cube while taking pressure is 300 ksc. (30 MPa)
The minimum ultimate compressive strength of a "concrete cylinder" after 28 days is 210 ksc. (21 MPa)
Prestressed concrete wires (PC Wire) used in the slabs are under TIS 95 standard
Prestressed concrete strands (PC Strand) used in the slabs are under TIS 420 standard
Calculation and design are under ACI 318-83 and PCI-1985 standards
In the process of steel reinforcement of a 5 cm overlay concrete, RB steel grids (Ø6 mm) with a spacing of 20 cm or prefabricated steel mesh (wire mesh) with wire size 4 mm and 20x20 cm spacing are used
Hollow concrete slabs have holes along the length of the slabs. These holes will increase self-strength efficiency. As the result, it can bear more weight than a Prestressed solid slab
o Made from dry concrete and modern machinery therefore of good quality and has no deflection problem
o Convenience and cost savings as it is quick to install so helps reduce human labor.
o Lightweight compared to other floor structures have strength in itself able to bear heavy weight.
o Insulates against noise and temperature due to hollow internal air channels thus reducing the passage of sound and temperature well.
o The abdominal side has a smooth surface and hollow core. Can be used as a ceiling, insert electrical conduits, water pipes, or can be used as ventilation holes
o Helps to prevent fire. Able to withstand heat for hours so will contain the damage from adjacent area.
PRESTRESSED SOLID SLAB
Prestressed solid slab are generally used for flooring in construction of small to medium size buildings such as houses and townhouses in which it provides a lower price point than the hollow core slabs.GENERAL SPECS FOR CMK PRESTRESSED SOLID CONCRETE SLABS OF WIDTH 30 CM AND 35 CM
Manufactured according to industrial standard (TIS. 828-2546)
The minimum ultimate compressive strength of a concrete cube after 28 days is 400 ksc. (40 MPa)
The minimum ultimate compressive strength of a concrete cube before the wires are cut is 300 ksc. (30 MPa)
The minimum ultimate compressive strength of the overlay concrete is 240 ksc. (24 MPa) for concrete cube
Prestressed concrete wires (PC Wire) used in the slabs are under TIS 95 standard
For a 5 cm overlay concrete, RB steel grids (Ø6 mm) with a spacing of 20 cm or prefabricated steel mesh (wire mesh) with wire size 4 mm and 20x20 cm spacing are used
Concrete slabs shaped like a plank. The belly plate is smooth without the need for plastering. But the top is not smooth so it can be easily combined with the poured concrete to form a homogeneous face.
o It is strong, durable, meets standards, and is cheap compared to hollow slabs.
o Lightweight, easy to move and install.
o Easy to install by manual labor. No need for large machines. This saves time and money.
o Smooth surface, close joints, no need to plaster. Resulting in savings on labor and other expenses
CONCRETE PIPE
GENERAL SPECS FOR CMK REINFORCED CONCRETE PIPE FOR DRAINAGE
Manufactured according to industrial standard (TIS. 128-2549)
The minimum ultimate compressive strength of a concrete cube after 28 days is 350 ksc. (35 MPa)
Reinforced with round iron wire under TIS. 20 standard or with cold drawn steel wire under TIS. 747 standard
Longitudinal reinforcement steel has the minimum diameter of 4 mm
In the transportation of goods, we have a delivery service with either ten-wheel vehicles or trailers, depending on the suitability of the product and the customer's work site The delivery fee will be determined by the distance delivered and the total payment amount.
For customers who wish to bring a car to pick up the product by themselves, We have a service to lift and transport goods onto your vehicle in a fast and safe manner and a weighing service for the truck to prevent overloading and comply with the law.