Filling the pores in the aerogel with plastic should remove its fragility and, conversely, the network of clay molecules in the aerogel will stop the plastic cracking.
In March 1981 the Earth Firsters unrolled a 300ft-long black plastic "crack" down the side of Glen Canyon Dam, thereby accomplishing – at least metaphorically – Hayduke's dream of its demolition.
Results indicate that within the range 275 385 m2/kg, cement specific surface area is approximately directly and inversely proportional to hydration rate and evaporation rate respectively; a trend generally leading to higher plastic shrinkage and resulting areas of plastic cracking.
In summary, the experimental programme confirmed that cement with relatively low surface area (less than 340 m2/kg) and low alkali content (less than 0.8%) is preferred for modern concretes with minimal plastic cracking problems.
When the plastic cracks, it breaks tiny capsules in the plastic, releasing a liquid healing agent, like blood flowing into a cut.
Adding coconut fiber positively influenced first-crack deflection, toughness indices, plastic cracking, and impact resistance in the composites.
The present study examines the effect of adding random, short coconut fibers to various cementitious composites on the mechanical properties, plastic cracking, and impact resistance of these composites.
This article is aimed at finding the feasible measures to reduce the early plastic crack of cement concrete, by means of field test and simulating test from laboratory.
Computed near-tip deformation evidenced plastic crack advance, this way visualising of the Laird Smith concept of fatigue cracking.
Steel fiber improved the shear resistance and ductility of concrete through bridging the plastic cracks near the shear failure plane.
Experimental results show that steel fiber fails to change the failure mode of CFST columns, but delays the local buckling of steel tube through bridging the plastic cracks near the sliding plane and improving the shear-frictional resistance of concrete.
