Tap Stand Construction
Mambo Village
By Ernest Liu and Crystal Wong
July 2013
Formwork Construction
1.
Cut 3cm thick timber planks to the following sizes for the outer
formwork of the base:
70cm
x1
70cm
23cm
70cm
4cm circular
opening
x2
23cm
x1
23cm
x1
76cm
3cm
76cm
Formwork Construction
2.
On a flat surface, assemble the timber planks for the outer formwork of
the base as follows.
NOTE:
Ta k e c a r e t o n o t h a m m e r t h e n a i l a l l
the way in to allow for easy formwork
r e m o va l l a t e r.
Formwork Construction
3.
Cut steel mesh to the following size:
60cm
x1
60cm
4.
Cut plastic pipe to the following size for use as spacers :
4cm
5.
x5
Cut and bend a 10mm diameter steel bar to the following dimensions:
62cm
30cm
x1
Formwork Construction
6.
Cut ½ inch steel pipe to the following dimensions and use thread cutter
on both ends:
62cm
7.
30cm
Collect ½ inch pipe fittings and assemble pipe as follows:
NOTE:
To be fitted on later, after
fixing pipe in place in the
formwork
Use tape at
all
connections
and screw
tightly to
prevent
leakage of
w a t e r.
Formwork Construction
8.
Cut 3cm thick timber planks to the following sizes for the inner
formwork of the base:
10cm
x2
55cm
10cm
60cm
x1
Formwork Construction
9.
Place spacers, steel mesh, and L-shaped steel bar inside formwork and
assemble inner formwork on top of spacers, steel mesh, and L -shaped
steel bar as follows:
NOTE:
Hammer the
nail all the way
in to avoid
having the nail
protrude into the
actual concrete
structure
10cm
NOTE:
Take care to not
hammer the nail
all the way in to
allow for easy
formwork
removal later.
10cm
NOTE:
L-shaped steel
bar should be
under steel
mesh.
Formwork Construction
10.
Put pipe in place, fit remaining pipe through hole in the base
formwork, and fit remaining pipe fitting on to end of pipe extending
beyond formwork.
NOTE:
Use tape at all
connections and
screw tightly to
prevent leakage
o f wa t e r.
11.
Ti e p i p e t o L - s h a p e d s t e e l b a r u s i n g s t e e l wi r e s .
Formwork Construction
12.
Cut 3cm thick timber planks to the following sizes for the formwork for
the post:
12cm
x2
18cm
x1
58cm
58cm
10cm
4cm
18cm
x1
58cm
10cm
x1
30cm
4cm
5cm
x1
Formwork Construction
13.
Assemble formwork for post as follows, ensuring the tap end of the pipe
can fit into the opening made in the formwork for the post, and insert
small block into opening in formwork above tap.
29cm
29cm
small block
to be
inserted into
opening in
formwork
above tap
NOTE:
Take care to not
hammer the nail
all the way in to
allow for easy
formwork
removal later.
Formwork Construction
14.
Fix pipe under steel mesh using steel wires
NOTES:
•
Make sure pipe
and tap are
vertical
•
Position pipe so that the
inner edge of the formwork
is at the center of the
connecting fitting, in order
to ensure that the tap
extends appropriately
beyond the concrete
structure.
Make sure
pipe and tap
are vertical
•
Make sure there is a gap between
the edge of the mesh and the
formwork on all four sides. DO
NOT allow mesh, L-shaped steel
b a r, a n d p i p e t o t o u c h f o r m wo r k .
gap
gap
gap
gap
Formwork Construction
15.
Place the 5 spacers upright under the steel mesh.
16.
We are now reading for concreting.
Concreting
17.
Measure the following quantities of materials for mixing on a flat
surface:
cement
1 bucket (20L)
sand
2 buckets (40L)
gravel
3 buckets (60L)
Concreting
18.
T h o r o u g h l y m i x c e m e n t , s a n d , a n d g r a v e l t o g e t h e r.
19.
Make hole in middle of cement, sand, and gravel mixture. Add 1 bucket
( 2 0 L ) o f w a t e r t o h o l e a n d m i x t h o r o u g h l y. A d d w a t e r a s n e e d e d f o r
w o r k a b l e c o n s i s t e n c y b u t m a k e s u r e t h a t t h e m i x t u r e i s n o t t o o r u n n y.
water
1 bucket (20L)
Concreting
20.
Use water to wet formwork.
21.
Put wet concrete into form.
22.
Use a rod to tap the wet concrete
in order to remove air bubbles.
Concreting
23.
Use a trowel to smooth the surface
of the concrete. Create a slight
gradient towards the open edge of
the tap stand (ie. sloping away from
the post) for drainage purposes.
24.
Use two pieces of timber to create
the formwork for a roof like top for
the post in order to prevent users
from sitting on the post. Push the
two pieces of timber into the wet
concrete to force the concrete to
conform to the roof-like shape.
25.
Concreting is now complete. Allow
wet concrete to stand for 2 days
before removing formwork in order
for the hydration reactions within the
concrete mixture to occur and the
concrete to gain strength.
slight downwards
gradient
Concreting
26.
Remove formwork.
27.
Create a mixture of cement and water and apply to smooth the surface
of the tap stand. Wait at least 1 day after application of the cement
and water mixture before transporting the tap stand to site for
installation.
Transporting
28.
L i f t t a p s t a n d o n t o l o r r y. Ta k e c a r e n o t t o p u s h t h e p o s t o f t h e t a p
stand when lifting the tap stand. Secure tap stand on lorry with ropes
to help prevent damage of tap stand during transportation.
Site Preparation and Installation
29.
Select suitable location for placement of tap stand, taking into
account the location of the existing water pipe and any gutter for
drainage.
30.
Remove existing tap stand.
31.
Flatten ground for placement of tap stand.
Site Preparation and Installation
32.
Pack ground to ensure that it is compact.
33.
Place some large rocks in front of the tap stand where the water
drains to.
34.
Move tap stand into place.
Site Preparation and Installation
35.
Te m p o r a r i l y s t o p w a t e r s u p p l y.
36.
Disconnect pipe to existing tap stand and connect to new tap stand.
NOTE:
Use tape at all
connections and
screw tightly to
prevent leakage
o f wa t e r.
37.
Cover exposed pipe on ground with soil. Also place soil around tap
stand so that the base of the tap stand is half embedded in the soil.
Site Preparation and Installation
38.
The tap stand is now ready for use.