Casting of the substructure columns ongoing.

Plumbing work done at the substructure level before backfilling starts.

Substructure work concluded, getting set for the backfilling and damp proof membrane.

Aerial pictures of the substructure work. Shot by BITSWORKS-1.

Backfilling of foundation trenches ongoing.

Backfilling still ongoing, 60 tons of filling dumped so far.

BITSWORKS:
Backfilling still ongoing, 60 tons of filling dumped so far.

Good job as usual. Please what's the size of the building as I am waiting patiently to know how much tons was used to fill the building. it is a learning process for me.

seunben:

Good job as usual. Please what's the size of the building as I am waiting patiently to know how much tons was used to fill the building. it is a learning process for me.

Thanks for the good words.

The size of the building is L-23.759m, B-9.576m. As of today 100 tons (5 trips of 20tons truck) of filling has been dumped. Its looking like we will still do between another 40-80 tons but not more than that. Please take into cognizance the number of coaches laid. We have 4 coaches in the front unit and 5 coaches at the rear unit.

You can also calculate the volume (cu3) of the trenches and convert to tonnages. Depending on the type of soil, the multiplying factor is different if its dry sand or moist sand.

Backfilling still ongoing, 100 tons dumped so far, 80 tons have been backfilled already. Today's dumping delivery was late in the day and we pushed the backfilling till tomorrow.

Backfilling still ongoing at a steady pace, 120 tons dumped and we are still a long way from completion.

After 120 tons of backfilling, we still have this much to do. By my rough calculation, we are looking at another 80 tons, hopefully no more than that.

Backfilling on hold temporarily due to the incessant rain and bad road. The dump trucks will not be able to access the filling sand location.

BITSWORKS:
Backfilling on hold temporarily due to the incessant rain and bad road. The dump trucks will not be able to access the filling sand location.

sorry for the delay bro. How much are you paying for labour for each trip to do the backfilling.

seunben:

sorry for the delay bro. How much are you paying for labour for each trip to do the backfilling.

For each 20 tons trip its N6,000 but I was able to negotiate to N5,000. For 10 tons its N3,000. They will rent wheel barrows and shovels themselves.

Backfilling still on hold due to bad road conditions to the Laterite site. We have lost 2 working days and today possibly will make it 3 days but am hoping for the best.

We received a dump of 20 tons backfilling yesterday and another 20 tons this morning making a total of 160 tons dumped so far. Let's see how far we can go with this and how much backfilling will be needed to complete the task.

carry on bro. patiently waiting for tomorrow's pics.

Backfilling still ongoing, 180 tons dumped so far. Half of the span of the building almost done, at the stair section where we have a drop down level.

Half done, half to go. Compacting of the backfilled half in progress.

Rain has actually delayed this phase of the project but it also helped in solidifying the backfilling.

Laying of the damp proof membrane (DPM) on the compacted backfilling.

Laying of the german floor mat reinforcements, all set for casting but we have to hold on and complete the second half backfilling, compacting and reinforcements work.

200 tons of backfilling dumped and filled and just a little more to go. We definitely need another 20 tons and we should be able to call it a wrap.

Aerial pictures of the german floor reinforcement mat work. Shot by BITSWORKS-1.

Backfilling almost complete, just a tiny bit more. After 220 tons, it looks like the trenches is swallowing the backfill. We will require just another 10 tons which we won't use up.

Backfilling task accomplished at last. We used a total of 230 tons laterite sand to backfill.

It was a slow process due to the incessant rain that affected the dump trucks loading and also the backfilling work.

Compacting of the backfilling ongoing. We initially planned to cast the german floor Thursday/Friday but I was not too pleased with the compacting done and told them to leave it for a day or two to get the rain to fall on it. That way, the backfilling compacts better and we top it off.

Casting of the german floor is shifted to next week, we should be able to lay the DPM and reinforcements mat tomorrow, Saturday.

Backfilling, compacting, DPM laying and reinforcements mat concluded.

Casting of the german floor in progress.

Still ongoing.

keep the flag flying. pls update us on the quantities of material use for the german floor.

Front half of the german floor casting completed.

seunben:
keep the flag flying. pls update us on the quantities of material use for the german floor.

Thank you. For the material, we did a bulk purchase of most of the materials used but I will try and do a breakdown based on usage
1. Granite - We purchased 30 tons and probably used close to 20 tons for the short pillars and german floor
2. Sharp sand - We purchased 20 tons and used it up, what's left is just little.
3. Cement - We used 82 bags using a mix ratio of 1:2:4