EXAMPLE 2.10.1. ESTIMATING A 1M CONCRETE PIPE

Estimate the materials needed to make a 50-cm diameter pipe using class B.

The designation of a concrete pipe is through the inner diameter or the hollow part. Also, the standard length of a concrete pipe is 1m. 

Volume method: Take the volume of the pipe and multiply it with the factors on the volume method table.

              

                  

                  

From the Volume Method Table, using class B:(1:2.5:5)


       

       

       


Linear Meter Method: Using 1-m length under class B.

DIA, D	DIA, d	A	B	SAND	GRAVEL
		(40kg)	(40kg)
cm.	cm.	bags	bags	cu.m.	cu.m.
21	15	0.152	0.127	0.009	0.018
26	20	0.195	0.163	0.011	0.022
33	25	0.328	0.274	0.018	0.037
39	30	0.436	0.363	0.025	0.05
50	40	0.635	0.53	0.036	0.072
60	50	0.779	0.65	0.044	0.088
78	60	1.755	1.463	0.098	0.196
90	70	2.26	1.883	0.126	0.252
100	80	2.538	2.15	0.141	0.282
110	90	2.826	2.355	0.157	0.314
120	100	3.11	2.595	0.173	0.346
144	120	4.482	3.735	0.249	0.498
174	150	5.5	4.583	0.306	0.612

       


       

       

      

                     

           

           



Back to 2.0 Estimating Concrete
            2.7. Estimating Concrete Slabs by the Area Method
            2.8. Estimating Concrete Columns by Linear Meter Method
            2.9. Estimating Circular Columns
                2.10. Estimating Concrete Pipes