Moulded block (101; 201; 301; 401; 501; 601; 701; 801), in particular concrete moulded block (BF101), - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a first upper longitudinal edge (102; 202; 302; 402; 502; 602; 702; 802) and a second upper longitudinal edge (103; 203; 303; 403; 503; 603; 703; 803), - wherein said longitudinal edges (102, 103; 202, 203; 302, 303; 402, 406; 502, 503; 602, 603; 702, 703; 802, 803) are situated opposite one another, - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a top-side surface which is arranged between said longitudinal edges (102, 103; 202, 203; 302, 303; 402, 403; 502, 503; 602, 603; 702, 703; 802, 803), - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a set (M-105) of protrusions (105; 205; 305; 405; 505; 605; 705; 805), - wherein the protrusions (105; 205; 305; 405; 505; 605; 705; 805) are arranged on the top-side surface and form a profiling , - wherein the protrusions (105, 105a-105e; 205; 305; 405, 405a-405e, 405f'-405i'; 505; 605; 705; 805) of a first subset (TM1-105; TM1-205; TM1-305; TM1-505; TM1-605; TM1-705; TM1-805) of the set (M-105) have a first protrusion height (H1-105; H1-205; H1-305; H1-405, H1-405'; H1-505; H1-605; H1-705; H1-805), - wherein the protrusions (105, 105f-105i; 205; 305; 405, 405f-405i, 405a'-405e'; 505; 605; 705; 805) of a second subset (TM2-105; TM2-205; TM2-305; TM2-505; TM2-605; TM2-705; TM2-805) of the set (M-105) have a second protrusion height (H2-105; H2-205; H2-305; H2-405, H2-405'; H2-505; H2-605; H2-705; H2-805), characterized - in that the first protrusion height (H1-105; H1-205; H1-305; H1-405, H1-405'; H1-505; H1-605; H1-705; H1-805) is at least 2 mm smaller than the second protrusion height (H2-105; H2-205; H2-305; H2-405, H2-405'; H2-505; H2-605; H2-705; H2-805), and - in that each protrusion (105; 205; 305; 405; 505; 605; 705; 805) is in the form of a truncated-cone-like body . - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a first upper longitudinal edge (102; 202; 302; 402; 502; 602; 702; 802) and a second upper longitudinal edge (103; 203; 303; 403; 503; 603; 703; 803), - wherein said longitudinal edges (102, 103; 202, 203; 302, 303; 402, 406; 502, 503; 602, 603; 702, 703; 802, 803) are situated opposite one another, - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a top-side surface which is arranged between said longitudinal edges (102, 103; 202, 203; 302, 303; 402, 403; 502, 503; 602, 603; 702, 703; 802, 803), - wherein the moulded block (101; 201; 301; 401; 501; 601; 701; 801) comprises a set (M-105) of protrusions (105; 205; 305; 405; 505; 605; 705; 805), - wherein the protrusions (105; 205; 305; 405; 505; 605; 705; 805) are arranged on the top-side surface and form a profiling , - wherein the protrusions (105, 105a-105e; 205; 305; 405, 405a-405e, 405f'-405i'; 505; 605; 705; 805) of a first subset (TM1-105; TM1-205; TM1-305; TM1-505; TM1-605; TM1-705; TM1-805) of the set (M-105) have a first protrusion height (H1-105; H1-205; H1-305; H1-405, H1-405'; H1-505; H1-605; H1-705; H1-805), - wherein the protrusions (105, 105f-105i; 205; 305; 405, 405f-405i, 405a'-405e'; 505; 605; 705; 805) of a second subset (TM2-105; TM2-205; TM2-305; TM2-505; TM2-605; TM2-705; TM2-805) of the set (M-105) have a second protrusion height (H2-105; H2-205; H2-305; H2-405, H2-405'; H2-505; H2-605; H2-705; H2-805), - in that the first protrusion height (H1-105; H1-205; H1-305; H1-405, H1-405'; H1-505; H1-605; H1-705; H1-805) is at least 2 mm smaller than the second protrusion height (H2-105; H2-205; H2-305; H2-405, H2-405'; H2-505; H2-605; H2-705; H2-805), and - in that each protrusion (105; 205; 305; 405; 505; 605; 705; 805) is in the form of a truncated-cone-like body . <EOS>