1) a)to prepare mortar for bricklaying how much amount of
water should be added for its maximum strength and
workability(to avoid cracks which results, when
high quantity of water is added)?is their a formula or ratio?
b) suppose we want to make 1:3 mortar,what is the best
way to measure cement ,sand and water and how?
c)time before which freshly prepared mortar should be used?
d)proper way to mix and make mortar?
e)when should curing start after laying bricks and for
how long?and also how many hours per day?
f)what is shear wall (please in terms of layman lol)
bookish definisions are confusing....
g) and last,acc to codes what are max no. of course
that should be laid in a day.
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Answer Posted / Prateek Kumar Chahal
1) For 1:3 mortar (1 part cement : 3 parts sand), the recommended water-cement ratio is about 0.4 to 0.5 by volume. This ensures adequate workability without compromising strength.nn2) To make 1:3 mortar, you would need:n - Cement: 1 part by volume or weightn - Sand: 3 parts by volume (preferably fine sand for better bonding)n - Water: About 0.4 to 0.5 parts by volumenn3) Freshly prepared mortar should be used within 60-90 minutes for optimal workability and strength.nn4) Proper mixing of mortar involves:n - Combining cement and sand thoroughlyn - Slowly adding water while mixing, ensuring there are no dry spotsnn5) Curing should start immediately after laying bricks and continue for at least 7 days. Ideally, the mortar should be kept moist during this period, which can be done by spraying water or covering it with damp burlap.n - During this period, the mortar should not be exposed to extreme temperatures or direct sunlight.nn6) A shear wall is a structural wall that resists lateral forces (like wind or earthquakes) primarily through shear resistance rather than flexural strength. In simpler terms, it's a wall designed to withstand sideways pressure.nn7) The maximum number of courses (layers of bricks) that can be laid in a day depends on various factors like the skill of the mason, weather conditions, and the type of mortar used. However, as a general rule, it's advisable not to exceed 3-4 courses per day for best results.
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