use basic_materials mod where possible.

concrete/depends.txt

@@ -1,3 +1,4 @@
 default
+basic_materials
 intllib?
 

concrete/init.lua

@@ -23,24 +23,6 @@ else
 	steel_ingot = "default:steel_ingot"
 end
 
-minetest.register_craft({
-	output = 'technic:rebar 6',
-	recipe = {
-		{'','', steel_ingot},
-		{'',steel_ingot,''},
-		{steel_ingot, '', ''},
-	}
-})
-
-minetest.register_craft({
-	output = 'technic:concrete 5',
-	recipe = {
-		{'default:stone','technic:rebar','default:stone'},
-		{'technic:rebar','default:stone','technic:rebar'},
-		{'default:stone','technic:rebar','default:stone'},
-	}
-})
-
 minetest.register_craft({
 	output = 'technic:concrete_post_platform 6',
 	recipe = {
@@ -51,9 +33,9 @@ minetest.register_craft({
 minetest.register_craft({
 	output = 'technic:concrete_post 12',
 	recipe = {
-		{'default:stone','technic:rebar','default:stone'},
-		{'default:stone','technic:rebar','default:stone'},
-		{'default:stone','technic:rebar','default:stone'},
+		{'default:stone','basic_materials:steel_bar','default:stone'},
+		{'default:stone','basic_materials:steel_bar','default:stone'},
+		{'default:stone','basic_materials:steel_bar','default:stone'},
 	}
 })
 
@@ -66,18 +48,6 @@ minetest.register_craft({
 	}
 })
 
-minetest.register_craftitem(":technic:rebar", {
-	description = S("Rebar"),
-	inventory_image = "technic_rebar.png",
-})
-
-minetest.register_node(":technic:concrete", {
-	description = S("Concrete Block"),
-	tiles = {"technic_concrete_block.png",},
-	groups = {cracky=1, level=2, concrete=1},
-	sounds = default.node_sound_stone_defaults(),
-})
-
 minetest.register_node(":technic:blast_resistant_concrete", {
 	description = S("Blast-resistant Concrete Block"),
 	tiles = {"technic_blast_resistant_concrete_block.png",},
@@ -101,7 +71,7 @@ local box_right    = {0,     -0.3, -0.1,  0.5,  0.3, 0.1}
 
 minetest.register_node(":technic:concrete_post_platform", {
 	description = S("Concrete Post Platform"),
-	tiles = {"technic_concrete_block.png",},
+	tiles = {"basic_materials_concrete_block.png",},
 	groups={cracky=1, level=2},
 	sounds = default.node_sound_stone_defaults(),
 	paramtype = "light",
@@ -133,7 +103,7 @@ for platform = 0, 1 do
 
 	minetest.register_node(":technic:concrete_post"..(platform == 1 and "_with_platform" or ""), {
 		description = S("Concrete Post"),
-		tiles = {"technic_concrete_block.png"},
+		tiles = {"basic_materials_concrete_block.png"},
 		groups = {cracky=1, level=2, concrete_post=1, not_in_creative_inventory=platform},
 		sounds = default.node_sound_stone_defaults(),
 		drop = (platform == 1 and "technic:concrete_post_platform" or