ground floor rc system colour the ground floor columns and horizontal beam belong to the same family of pigmented reinforced concrete change the current ground floor tone to a warmer natural sand tone the colour should be inspired by dry mineral sand warm sandy beige subtle ochre undertone very soft earthy brown undertone small natural variations from the exposed aggregates keep the colour desaturated mineral and sophisticated avoid pale cream pink salmon strong orange terracotta grey concrete the ground floor must remain clearly different in colour from the salmon toned upper fa ade ground floor columns very rough sandblasted rc apply only to the four large rotated ground floor columns use very rough sandblasted pigmented concrete important the current column texture is too smooth and too refined increase the sandblasting significantly the surface must have very strong granular roughness clearly exposed fine and medium aggregates visible aggregate colour variation irregular mineral particles small pits and cavities strong tactile depth completely matte finish subtle micro shadows across the surface the texture must remain visibly rough even from the current camera distance this is a very heavily sandblasted concrete surface it should feel raw mineral massive and tactile however it must still be recognisable as sandblasted concrete not bush hammered concrete do not make it smooth honed polished plaster like limestone like sandstone like ground floor horizontal rc beam keep the horizontal beam in the same natural sand toned pigmented concrete family maintain the much rougher heavily bush hammered finish previously specified the beam should remain texturally different from the columns columns very rough sandblasted horizontal beam extremely rough bush hammered keep the bush hammered texture irregular coarse and mineral do not return to regular vertical grooves or repetitive ribbing ground floor rc beam construction joints introduce visible vertical construction panel joints in the ground floor horizontal rc beam the joints must follow the architectural structural rhythm place each joint in the middle of the corresponding ground floor column because the columns are square elements rotated 45 degrees in plan use the visible central vertex apex of each column as the alignment reference each vertical beam joint must be exactly aligned with the vertex of the column directly below vertical rc beam joint column vertex centre axis the joint must continue as a precise vertical line through the visible face of the horizontal beam the joints should read as real construction joints between separate rc fa ade elements they must be very thin precise straight vertical subtle but clearly readable consistently detailed do not create deep shadow gaps do not create expansion joints do not create wide black gaps do not divide the beam randomly do not place joints between columns the joints must reinforce the structural rhythm without becoming a decorative pattern flooring alignment coordinate with same vertices keep the current flooring material adjust only the paving joint setting out use the same ground floor column vertices as control lines the paving joints must align precisely with the vertices of the rotated ground floor columns therefore the ground floor composition should have a coordinated setting out relationship between rc beam joint column vertex flooring joint these three elements should visually align wherever applicable keep the paving joints thin precise and architectural upper fa ade keep the existing salmon concrete colour and texture exactly as shown keep the existing matte red aluminium profiles and balustrades exactly as shown the only upper fa ade geometry correction remains the second upper level horizontal beam must be reduced to match exactly the dimensions height depth and profile of the first upper level horizontal beam do not modify any other upper level geometry important do not redesign the ground floor geometry to accommodate the joints the joints are applied to the existing geometry do not change column dimensions column rotation column position column to beam geometry beam curvature glazing camera crop perspective only refine the requested materials construction joints flooring setting out and the previously specified upper beam correction
