Block filling is a civil construction related item that basically means filling of hollow concrete blocks used for the construction of building walls with the application of heat insulation materials. You can find different kinds of block filings such as concrete blocks, cinder blocks and precast blocks. Most of these blocks are filled with resin and acrylic materials, and you can use them to decorate your interior and exterior walls. Other materials can also be used for filling of for mitigating noise, migration of water, improvement of fire rating or to reduce heat transmission. Concrete is also poured inside the concrete blocks for improvement of strength.
The same ingredients are used for making hollow blocks as well as pouring medium, namely Portland cement, sand, and gravel. When a wall of stacked concrete block voids is filled with cement-based mortar or cement-based concrete containing small size dolerite, it appears almost identical.
The Procedure Of Block Filling By Pouring Concrete
For the smaller quantity of pouring, funnel type pouring item made of plywood is generally used matching the opening size of the blocks. This helps in pouring the mixture into the block. The mixture inside the pocket needs vibration.
Hollow Concrete or cinder blocks are used as a prime building material for a long time. Blocks are stacked one above the other to make the exterior or retaining walls. Cinder blocks are easier to fill up with concrete for construction projects. Reputed construction companies also select cinder blocks to make the durable exterior walls.
The Following Procedure Is Generally Followed For Block Filling:
#1. First Step, calculation: Make an estimate about the quantity of concrete that would be needed to fill the blocks. This is determined by the contractors based on a number of blocks to be filled. A single bag of concrete serves the purpose for most civil construction. To get a closer estimate, measurement of length, width and depth are necessary. This will give you an approximate figure to arrive at the quantity of concrete required.
#2. The second step, drilling: Contractors prefer to start with by drilling holes into the blocks if no hole is present already. Generally, a hammer drill is used for this purpose. A 12-inch drill bit is generally preferred by the contractors. After drilling of holes, the approximate volume is measured as stated above.#3. The third step, preparation of concrete: Contractors prefer to start block pouring after concrete is prepared. Block filling is carried out batch by batch. Necessary volume of water is to be mixed. Concrete is mixed by a portable agitator. Before make the concrete blocks, professionals need to clean the surface. In this stage, you need to remove the grease, foreign materials, oil, dirt and dust from the surface. You can use the sandpaper or wire brush to clean the surface.
#4. The fourth step, pouring of concrete: Concrete is poured into the holes either pre-existing or made by drilling. In case however, rebar is applied by the contractors to fix the cracking develop in the block. After successful pouring of concrete inside the block, it is kept in sunlight for curing or drying.
#5. Block Filling By EPS: EPS is basically a plastic material which is an abbreviation of the word expanded polystyrene (EPS) foam; commercially termed as Styrofoam is seldom used by the contractor for thermal insulation and craft applications. EPS foam is the correct term for any form of expanded polymer polystyrene. Block filling by EPS offers excellent thermal resistivity. The installed R-value of EPS masonry is higher than other commonly used block filling materials namely concrete and cements mortar. So now you can choose the block filing according to your needs and these blocks will provide the strength to your building as well.