Problem $5$

A column form $14$ feet high is filled with heavy weight concrete $(220$ pounds per cubic foot$)$ at a temperature of $43$

degreesF. The cement is Type $1$ with a retarder. Concrete will be placed with a normal internal

vibration to a depth of less than four feet. The concrete will be placed in $1$ hour. Determine the

correct concrete lateral pressure to be used in concrete planning and clearly identify your answer

with a box around it$.$ Draw the concrete lateral pressure diagram showing all pertinent data.

Problem $6$

A column form $16$ feet high is filled with normal weight concrete at a temperature of $53$ degreesF. The cement is Type $1$

without a retarder. Concrete will be placed with a normal internal vibration to a depth of less than

four feet. The concrete is to be pumped into the base of the formwork at a rate of $10$ cu yd per

hour. Determine the correct concrete lateral pressure to be used in concrete planning and clearly

identify your answer with a box around it$.$ Draw the concrete lateral pressure diagram showing

all pertinent data. The internal dimensions of the column form is $2$ feet by $2$ feet.

Eq$.5\mathrm{.}152C_{cp}=wh,$Hydostrmic Pressure $($Theresticsl$)$

sump $>7",R>15\%$ hor, wre: vibe $>4^{\text{'}}$ depth

EQ$.5\mathrm{.}15b,C_{cp}=C_C{C}_{}[150+\frac{9000R}{T}]$

sll colunis.

walls mech ix both:

$H\frac{?}{{?}_A^{\text{'}}}$

$R<mn>7</mn>$ 'hor

E$0\mathrm{.}5\mathrm{.}15$c $C_{Cp}=C_C{C}_{}[150+\frac{43,400}{T}+\frac{2,800R}{T}]$ wells mectip

$H>{14}^{\text{'}}$&

$R7-15\frac{\text{:}}{w}$

Indusiry Limits por $\frac{?}{{?}_{\frac{?}{?}}CT}$