(8 points) Consider casting a concrete driveway 40 feet long, 12 feet wide and 6 in. thick. The proportions of the mix by weight
1 answer:
Answer:
Weight of cement = 10909.08 pounds
Weight of sand = 18008.64 lb
Weight of gravel = 28051.92 lb
Weight of water = 5454.54 lb
Explanation:
given data
length = 40 feet
width = 12 feet
thickness = 6 in = 0.5 feet
mix proportion = 1:2:3
specific gravity of cement = 3.15
specific gravity of sand = 2.60
specific gravity of gravel = 2.70
water to cement ratio = 0.50
solution
first we get here total volume that is
volume = length × width × thickness ...........1
volume = 40 × 12 × 0.5
volume = 240 feet³
and
now we get here dry volume of concrete that will be
Dry volume = wet volume × 1.54 .......................2
Dry volume = 240 × 1.54
Dry volume = 360 feet³
and
we have given air content entrained is = 7.5 %
so required volume will be as
required volume = Dry volume × ( 1 - 7% ) .............3
required volume = 360 × ( 1 - 7.5 % )
required volume = 333 feet³
and
total ratio is
total ratio = 1+ 2+ 3
total ratio = 6
so volume of sand cement and gravel will be
volume of cement =
volume of cement = 55.5 feet³
volume of sand =
volume of sand = 111 feet³
volume of gravel =
volume of gravel = 166.5 feet³
and
now we get here weight of sand cement and gravel as
weight = volume × specific gravity × density of water .............4
and now put here value and we get
Weight of cement = 55.5 × 3.15 × 62.4
Weight of cement = 10909.08 pounds
and
Weight of sand = 111 × 2.60 × 62.4
Weight of sand = 18008.64 lb
and
Weight of gravel = 166.5 × 2.7 × 62.4
Weight of gravel = 28051.92 lb
and
Weight of water = 0.5 of weight of cement
Weight of water = 0.5 × 1090.9.08
Weight of water = 5454.54 lb
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Check the explanation
Explanation:
#include <iostream>
using namespace std;
void insert(int* arr, int* size, int value, int position){
if(position<0 || position>=*size){
cout<<"position is greater than size of the array"<<endl;
return ;
}
*size = *size + 1 ;
for(int i=*size;i>position;i--){
arr[i] = arr[i-1];
}
arr[position] = value ;
}
void print(int arr[], int size){
for(int i=0;i<size;i++){
cout<< arr[i] <<" ";
}
cout<<" "<<endl;
}
void remove(int* arr, int* size, int position){
* size = * size - 1 ;
for(int i=position;i<*size;i++){
arr[i] = arr[i+1];
}
}
int count(int arr[], int size, int target){
int total = 0 ;
for(int i=0;i<size;i++){
if(arr[i] == target)
total += 1 ;
}
return total ;
}
int main()
{
int size;
cout<<"Enter the initial size of the array:";
cin>>size;
int arr[size],val;
cout<<"Enter the values to fill the array:"<<endl;
for(int i=0;i<size;i++){
cin>>val;
arr[i] = val ;
}
int choice = 5,value,position,target ;
do{
cout<<"Make a selection:"<<endl;
cout<<"1) Insert"<<endl;
cout<<"2) Remove"<<endl;
cout<<"3) Count"<<endl;
cout<<"4) Print"<<endl;
cout<<"5) Exit"<<endl;
cout<<"Choice:";
cin>>choice;
switch(choice){
case 1:
cout << "Enter the value:";
cin>>value;
cout << "Enter the position:";
cin>>position;
insert(arr,&size,value,position);
break;
case 2:
cout << "Enter the position:";
cin>>position;
remove(arr,&size,position);
break;
case 3:
cout<<"Enter the target value:";
cin>>target;
cout <<"The number of times "<<target<<" occured in your array is:" <<count(arr,size,target)<<endl;
break;
case 4:
print(arr,size);
break;
case 5:
cout <<"Thank you..."<<endl;
break;
default:
cout << "Invalid choice..."<<endl;
}
}while(choice!=5);
return 0;
}
Kindly check the attached images below for the code output.
