Construction workers doing slump test using equipment at the construction site.
Schlüsselwörter
active,
aggregate,
air,
cement,
civil,
compacting,
concrete,
content,
country,
cylinder,
engineering,
equipment,
filled,
flow,
form,
integrity,
job,
labor,
manual,
measure,
metal,
mixing,
molded,
place,
pour,
pressure,
project,
ruler,
sample,
sand,
side,
site,
slump,
dirtied,
stability,
test,
work,
men at work,
working man,
inspection,
exam,
record,
height
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