Building materials group CRH on Tuesday reports its interim results amid a tough European market.Numis said anecdotal evidence from a number of companies, including Holcim, St Gobain, Wolseley and Nobia, suggests European activity has been "challenging in the third quarter with a relatively negative outlook for the remainder of the year".In August, the group reported in-line results with expectation that second half earnings before interest, tax, depreciation and amortisation (EBITDA) would be ahead year-on-year with growth in the US offsetting flat earnings in Europe.Given the recent signs of trouble in the European market, Numis believes there is "some risk to CRH's guidance and, as a result, the group may require a better-than-expected performance in the US to meet our forecasts".Fellow FTSE 100 company Capita also releases its interims and is expected to reiterate its full-year expectations for 2014 with organic sales growth of at least 8%."The bidding pipeline is likely to have shrunk relative to the £5.7bn (27 bids) in July owing to the recent failure to secure any of the Probation Services contracts (£1.2bn in the Jul pipeline)," Numis said. "But we now expect the mix of public : private to have shifted to more than 50% from the private sector."Tuesday 11 NovemberINTERIMSBlinkx, BTG, Hayward Tyler Group, Land Securities Group, Liontrust Asset Management, Oxford Instruments, Speedy Hire, Trifast, Vodafone GroupINTERIM DIVIDEND PAYMENT DATESmith & Nephew, Travis PerkinsQUARTERLY PAYMENT DATEMerchants TrustQ3OJSC Novolipetsk Steel GDS (Reg S), TBC Bank Joint Stock Company GDR (REGS)GMSStewart & WightFINALSEgdon Resources, FennerIMSSCRH, Friends Life Group Limited , Taylor WimpeyEGMSJSC Uralkali GDR (Reg S)AGMSA&J Mucklow Group, Craneware, Dunelm Group, JPMorgan Overseas Inv Trust, Jupiter Energy Ltd, Qatar Investment Fund, Vela TechnologiesUK ECONOMIC ANNOUNCEMENTSBRC Sales Monitor (00:01)