Powder type of self-compacting concrete (SCC) needs high cement content to achieve self-compactibility, this will be undesirable in tropical climate Sudan due implication hydration heat. This paper investigates reducing up 340 Kg/m3 by blending limestone powder (LSP) 15 % as replacement weight. Therefore, fifteen mixes having maximum (P) 400 have been carried out with four water/powder ratios (...

self compacting concrete (scc) specimens with limestone (l) and quartz (q) powders were formulated. the influence of the type of the powder on the properties of fresh and hardened concrete was evaluated. dense packing theories were used for mix design of samples. the equation of fuller and thompson for particle size distribution (psd) of aggregates was modified with considering fine particles a...

The high inertia, i.e. high mass and low speed, of a landing spacecraft has the potential to drive a penetrometer into the subsurface without the need for a dedicated deployment mechanism, e.g., during Huygens landing on Titan. Such a method could complement focused subsurface exploration missions, particularly in the low gravity environments of comets and asteroids, as it is conducive to condu...