We investigate how corporate venture capitalists (CVCs) can rapidly attain central positions in venture capital syndication networks. Using data of CVC investments by U.S. corporations between 1996 and 2005, we complement prior research, which suggests that centrally positioned VCs predominantly invest together with other centrally positioned VCs. While we find clear support for the social network theory arguments that prior central positions in syndication networks significantly explain future network positions of CVCs, we also find a negative interaction effect between past centrality and corporate resources. This finding implies that resources of CVCs can substitute for their lack of prior centrality and allow them to gain rapidly central positions in rigid VC syndication networks.

High early strength (HES) concrete patching materials are increasingly used to repair damaged pavements. The use of HES concrete enables the repaired pavement to be opened to traffic shortly after the repair has been installed; for example, opening pavements to traffic 4–6 h after the concrete is placed is becoming more common. HES concrete mixtures are typically designed with a low water-to-cement ratio and a high cement content; they contain accelerating admixtures and limited supplementary cementitious materials. As a result, these HES patches may be susceptible to self-desiccation, causing autogenous shrinkage and early age cracking. Self-desiccation can lead to reduced hydration, limited strength gain, and overestimation of strength development in maturity-based predictions. The objectives of this study are threefold. First, the paper will illustrate how self-desiccation can lead to the premature cessation of hydration and increased potential for shrinkage cracking. Second, the paper will illustrate how maturity-based predictions can be modified to account for self-desiccation. Third, internal curing is discussed as a way to mitigate self-desiccation and shrinkage ultimately improving the performance of HES concrete patching materials.

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