The compressive strength of no fines concrete varies between 4 mpa to 14 mpa.
No fines concrete retaining walls.
No fines concrete is used to reinforced retaining walls where space is limited.
Install each subsequent course in like manner.
Construction of small retaining wall.
No fines concrete can be used to construct a wall to a greater height than standard gravity wall construction methods.
Construction of external load bearing wall.
As damp proof material.
No fines concrete can be a simple solution to a variety of challenges that a site might present.
Repeat procedure to the extent of wall height.
The single sized coarse aggregates are surrounded and held together by a thin layer of cement paste giving strength of concrete.
3 5 additional construction notes.
These pre engineered tables provide an accurate estimate for geogrid reinforcement.
No fines concrete backfill can be used with any of the allan block retaining wall collections.
No fines concrete exhibits less drying.
Based on site constraints and project goals duffy engineering and associates.
No fines concrete is obtained by eliminating the fine material sand from the normal concrete mix.
Allan block retaining walls and no fines concrete no problem.
Construction of temporary structures.
Verify that the site condition of your retaining wall matches the table being used.
Woodland heights a 30 unit townhome association built in the 1980 s needed to replace its second timber retaining wall however numerous site constraints did not allow enough clearance to install geogrid reinforcement within the property limits.
Additional no fines concrete backfill pours can be made as soon as the additional block courses are placed.
Retaining wall geogrid and no fines concrete estimating charts.
The depth of a retaining wall may also be increased with the use of no fines concrete.
The advantages of this type of concrete are.
No fines concrete backfill has little to no slump and exerts pressure on the soil and the retaining wall similar to loosely poured aggregate until cured.
The no fines concrete by itself is a permeable concrete that is made by removing the fine aggregates in concrete.
No fines concrete backfill typically consists of cement fly ash water and coarse aggregate.
Allow 2 3 hours for the no fines concrete to cure after a maximum of 4 ft 1 2 m of wall height.
Advantages of no fines concrete.
Verify that the soil conditions at your site match the description.
The uses of this type of concrete are as follow.
The quantity of cementitious material is approximately 500 lb yd 297 kg m with a water cement ratio of approximately 0 30 0 40.
When using no fines concrete backfill the backfill zone will also serve as the required drainage or wall rock zone within the cores and directly behind the wall.
No fines concrete can also be applied to different projects aside from retaining walls.