Consumer protection

shocks

shocks

Elder Lister
Ubongo said:
I now understand mkuu.....wengi husema hizo cracks ni nyumba ikisettle kwa ground.... expansion after kunjengwa ama low quality mchanga ya plaster
Click to expand...
Low quality plaster done by either bad sand, or very little cement in the mix cracks, this one tho. huwa mostly aesthetic. Another huwa at the joint between masonry blocks and concrete beams/column, hii pia ni aesthetic
Differential settlement is another cause, sandy soils huwa na the largest settlements (red soil pia if you don't drain rain water and allow it to reach foundation depth)
Expansion contraction of walls / slab could also be a source. Movement joints are done if length of the structure is substantial. Clay bricks zikinyonya moisture expand too
When steel reinforcement starts corroding within concrete members will cause the concrete to spall

Cracks to watch out for;
Cracks on columns and beams, ikipita 2mm ask someone to look at it
Cracks that start at window/door openings and continue widening with time
 
Ubongo

Ubongo

Elder Lister
shocks said:
Low quality plaster done by either bad sand, or very little cement in the mix cracks, this one tho. huwa mostly aesthetic. Another huwa at the joint between masonry blocks and concrete beams/column, hii pia ni aesthetic
Differential settlement is another cause, sandy soils huwa na the largest settlements (red soil pia if you don't drain rain water and allow it to reach foundation depth)
Expansion contraction of walls / slab could also be a source. Movement joints are done if length of the structure is substantial. Clay bricks zikinyonya moisture expand too
When steel reinforcement starts corroding within concrete members will cause the concrete to spall

Cracks to watch out for;
Cracks on columns and beams, ikipita 2mm ask someone to look at it
Cracks that start at window/door openings and continue widening with time
Click to expand...
Quite informative
 
Aviator

Aviator

Elder Lister
shocks said:
Low quality plaster done by either bad sand, or very little cement in the mix cracks, this one tho. huwa mostly aesthetic. Another huwa at the joint between masonry blocks and concrete beams/column, hii pia ni aesthetic
Differential settlement is another cause, sandy soils huwa na the largest settlements (red soil pia if you don't drain rain water and allow it to reach foundation depth)
Expansion contraction of walls / slab could also be a source. Movement joints are done if length of the structure is substantial. Clay bricks zikinyonya moisture expand too
When steel reinforcement starts corroding within concrete members will cause the concrete to spall

Cracks to watch out for;
Cracks on columns and beams, ikipita 2mm ask someone to look at it
Cracks that start at window/door openings and continue widening with time
Click to expand...
Very informative.
You are a gem. Thanks for this piece of info.
 
Mongrel

Mongrel

Elder Lister
shocks said:
Low quality plaster done by either bad sand, or very little cement in the mix cracks, this one tho. huwa mostly aesthetic. Another huwa at the joint between masonry blocks and concrete beams/column, hii pia ni aesthetic
Differential settlement is another cause, sandy soils huwa na the largest settlements (red soil pia if you don't drain rain water and allow it to reach foundation depth)
Expansion contraction of walls / slab could also be a source. Movement joints are done if length of the structure is substantial. Clay bricks zikinyonya moisture expand too
When steel reinforcement starts corroding within concrete members will cause the concrete to spall

Cracks to watch out for;
Cracks on columns and beams, ikipita 2mm ask someone to look at it
Cracks that start at window/door openings and continue widening with time
Click to expand...
Aesthetic,
aesthetic


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aesthetic
1 of 2adjective
aes·thet·ic es-ˈthe-tik
is-,

British usually ēs-

variants also US esthetic or aesthetical or US esthetical
es-ˈthe-ti-kəl
is-,
British usually ēs-
1
a
: of, relating to, or dealing with aestheticsor the beautiful
aesthetic theories
b
: ARTISTIC
a work of aesthetic value
c
: pleasing in appearance : ATTRACTIVE
… easy-to-use keyboards, clear graphics, and other ergonomic and aesthetic features …—Mark Mehler
2
: appreciative of, responsive to, or zealousabout the beautiful
also : responsive to or appreciative of what is pleasurable to the senses
his aesthetic sensibility
3
: done or made to improve a person's appearance or to correct defects in a person's appearance
aesthetic plastic surgery
aesthetically adverb
or less commonly esthetically
es-ˈthe-ti-k(ə-)lē
is-,
British usually ēs-

aesthetic
2 of 2noun
aes·thet·ic es-ˈthe-tik
is-,

British usually ēs-
variants or less commonly esthetic
1
aesthetics also esthetics es-ˈthe-tiks
is-,

British usually ēs-
plural in form but singular or plural in construction : a branch of philosophy dealing with the nature of beauty, art, and taste and with the creation and appreciation of beauty
2
: a particular theory or conception of beauty or art : a particular taste for or approach to what is pleasing to the senses and especially sight
modernist aesthetics
staging new ballets which reflected the aesthetic of the new nation—Mary Clarke & Clement Crisp
3
aesthetics also esthetics plural : a pleasing appearance or effect : BEAUTY
appreciated the aesthetics
 
shocks

shocks

Elder Lister
Mwalimu-G said:
Bad sand ni ile fundi huniambia haina meno?
Click to expand...
Wengine wanaiita macho!
First thing to look out for is organic materials, put it in a jar of water, if alot of it floats then iko shida
Second thing is to look out for clay, grab a handfull of moist sand, ikichafua mkono na kama matope thats not good.
But the best method is to pay for a lab test , test inaitwa particle size analysis, the lab will group the type of sand for you which itasaidia during concrete mix design, na pia ikianguka utaelezwa its not suitable for buildinh
 
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