Construction World December 2020

VWRQH VL]H EH VSHFLͤHG VR ZH FKDQJHG IURP D PP WR D PP VWRQH̹ VD\V 5RVV ̸:H FRQGXFWHG D QXPEHU RI WHVWV RQ VLWH WR HQVXUH WKH VROXWLRQ ZDV ͤW IRU SXUSRVH ,Q DOO DERXW GLIIHUHQW FRQFUHWH PL[HV ZHUH HPSOR\HG GXULQJ WKH SURMHFW WR VXLW YDULRXV DSSOLFDWLRQV ̹ Another of the challenges for the contractor was the continued RSHUDWLRQ RI VRPH UHWDLOHUV RQ WKH JURXQG ͥRRU GXULQJ WKH ͤUVW SKDVHV RI WKH SURMHFW 7KHVH WHQDQWV UHTXLUHG WKH XVH RI RQH RI WKH OLIWV VR WKH GHPROLWLRQ RI WKH FRUH OLIW VKDIW DQG VWDLUZHOO ̰ RQH RI four cores stiffening the structure – could only begin in August after WHQDQWV PRYHG RXW ̸7R H[SHGLWH WKH SURMHFW ZH LQVWDOOHG SURSV DOO WKH ZD\ GRZQ WR WKH EDVHPHQW WR WDNH WKH FRUH OLIW VKDIW RII WKH SURMHFW̵V FULWLFDO SDWK̹ KH VD\V ̸:H WKHQ VWDUWHG EXLOGLQJ FRUH XQGHU D VXVSHQGHG FRUH ZKLFK KHOSHG VSHHG XS SURJUHVV ̹ The heritage perimeter walls facing Dixon Street were stabilised to protect them from some of the necessary top-down demolition, with the help of an independent engineer, according to GVK-Siya =DPD VLWH DJHQW 3LHWHU OH 5RX[ 7R VWUHQJWKHQ DQG VXSSRUW WKH KHULWDJH IDFDGHV [ ZRRGHQ URRI WLPEHUV ZHUH EROWHG DW GHJUHHV WR WKH H[LVWLQJ ͥRRU RQ OHYHO RQH DQG DWWDFKHG WR WKH ZDOOV XVLQJ D ͤ[LQJ GHWDLO DSSURYHG E\ WKH HQJLQHHU There were also pine lattice trusses in parts of the old roof, dating EDFN WR WKH V ZKLFK ZLOO EH LQFRUSRUDWHG DV D IHDWXUH LQWR WKH QHZ VWHHO URRI VWUXFWXUH 7KLV OHG WR DQRWKHU FKDOOHQJH DV WKH QHZ building is set back from the corner of Waterkant Street and Hudson 6WUHHW E\ PHWUHV &ROXPQV ZHUH WKHUHIRUH EXLOW WKURXJK WKH KHULWDJH WUXVVHV FDVWLQJ D WUDQVIHU EHDP DQG VODE DERYH )URP WKLV VWUXFWXUH D VWHHO URRI ZLOO EH LQVWDOOHG 'XH WR WKH URDGV DQG OLPLWHG VSDFH DURXQG WKH VLWH WUDͦF management plans were developed to ease congestion and bollards ZHUH HYHQ LQVWDOOHG (IIRUWV DUH PDGH WR DUUDQJH GHOLYHULHV IURP +XGVRQ 6WUHHW ZKLFK LV ZLGHU Ross concludes with a further unexpected challenge for AfriSam during its supply contract to the Old Cape Quarter: the closure of the VWHHO SODQW DW 6DOGDQKD 7KLV EURXJKW DQ DEUXSW KDOW WR WKH VXSSO\ of ground granulated blast furnace slag, which is a latent hydraulic ELQGHU DQG D SDUWLDO FHPHQW UHSODFHPHQW PDWHULDO ̸:H ZHUH DEOH WR VRXUFH D UHSODFHPHQW LQ WKH IRUP RI ͥ\ DVK IURP SRZHU VWDWLRQV LQ 0SXPDODQJD DQG *DXWHQJ WR FRQWLQXH VXSSO\LQJ the high standard of ready-mix for which AfriSam is well-known,” VKH VD\V ƒ

AfriSam supplied 9 700 m³ of concrete for this project, mostly from its Woodstock plant.

About 10 different concrete mixes were employed during the project to suit various applications.

Left: The project is adding four flours of luxury apartments onto the existing retail level, with three basements. Right: A particular challenge was the lack of space in the basement for the use of normal Class 3 formwork.

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2020