{"title":"Concrete, Cement \u0026 Bonding Agents","description":"\u003ch2\u003eConcrete, Cement \u0026amp; Bonding Agents for Retaining Wall Post Footings\u003c\/h2\u003e\u003cp\u003eEvery steel post in a concrete sleeper retaining wall needs a solid footing — and that footing is only as good as the concrete mix used to set it. Getting the footing right is one of the most critical steps in the entire build. An undersized or poorly mixed footing is the most common cause of post movement and wall failure over time.\u003c\/p\u003e\u003cp\u003eOur range of concrete, cement, and bonding agents is selected specifically for retaining wall post footing applications — trade and DIY quantities available, with Australia-wide delivery.\u003c\/p\u003e\u003ch2\u003ePost Footing Basics\u003c\/h2\u003e\u003cp\u003eSteel retaining wall posts are typically set in concrete footings that extend below the base of the wall. The footing depth should be at least one-third of the total post length — and often more in soft, wet, or expansive soils. The footing diameter should be sufficient to resist the lateral loads imposed by the retained soil.\u003c\/p\u003e\u003cp\u003eAs a general guide for residential walls:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUse a minimum 20MPa concrete mix for post footings\u003c\/li\u003e\n\u003cli\u003eFooting diameter typically 300–450mm depending on post size and wall height\u003c\/li\u003e\n\u003cli\u003eAllow concrete to cure fully (minimum 24–48 hours) before backfilling and loading the wall\u003c\/li\u003e\n\u003cli\u003eIn wet or reactive soils, consult your engineer for footing specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For walls over 1.0m or in challenging soil conditions, footing design should be confirmed by a licensed structural engineer.\u003c\/p\u003e\u003ch2\u003eWhat's in This Range\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid-set concrete\u003c\/strong\u003e — ideal for post footings where you need to backfill and continue work quickly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard concrete mix\u003c\/strong\u003e — for larger footing pours or where extended working time is needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCement \u0026amp; sand\u003c\/strong\u003e — for mixing custom batches on larger projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding agents\u003c\/strong\u003e — for repairs, patching, and bonding new concrete to existing surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWorks With Your Post System\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/h-beam-universal-column-steel-posts-rwd\"\u003eH-beam \u0026amp; universal column steel posts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/c-channel-pfc-steel-posts-rwd\"\u003eC-channel \u0026amp; PFC steel posts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/corner-l-posts-joiner-end-posts-rwd\"\u003eCorner, L-posts, joiner \u0026amp; end posts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eComplete Your Wall System\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/drainage-kits-ag-pipe-weep-holes\"\u003eDrainage kits, ag pipe \u0026amp; weep holes\u003c\/a\u003e — essential for long-term wall performance\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/hardware-brackets-cleats\"\u003eHardware, brackets \u0026amp; cleats\u003c\/a\u003e — fixings to complete the installation\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/retaining-wall-kits-bundles\"\u003eRetaining wall starter kits\u003c\/a\u003e — sleepers, posts \u0026amp; drainage in one order\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNot sure how much concrete you need for your footings? \u003ca href=\"\/pages\/cost-calculators\"\u003eUse our cost calculator\u003c\/a\u003e or \u003ca href=\"\/pages\/contact-retaining-wall-direct\"\u003econtact our team\u003c\/a\u003e for a material estimate.\u003c\/p\u003e","products":[],"url":"https:\/\/www.retainingwallsdirect.com.au\/collections\/concrete-cement-bonding-agents-rwd.oembed","provider":"Retaining Walls Direct","version":"1.0","type":"link"}