Early age cracking in concrete is caused by a combination of the chemical and autogenous shrinkage exhaustion water pores during hydration cement phases. Generally, this process takes place first 72 h casting. The use supplementary cementitious materials (SCMs) can mitigate due to several factors, among them: dilution effect, provision extra nucleation sites high specific surface SCMs, increase...

Sumatera Barat dikenal dengan alam yang sangat kaya oleh sumber daya mineral, salah satunya pozzolan (trass). Pozzolan adalah bahan mengandung senyawa silika dan alumina tidak mempunyai sifat mengikat seperti semen. Kandungan tinggi pada merupakan potensi untuk menjadikannya sebagai bisa dimanfaatkan di berbagai industri. Untuk mendapatkan tingkat kemurnian diperlukan proses ekstraksi. Pada pen...

Due to global warming, many sectors have discovered sustainable methods. Many studies been conducted in various reduce carbon emissions. Cement production the construction sector causes an enormous emission, and put end this situation, pozzolan-added concrete, which is called green has into use instead of concrete produced with Portland cement. One materials used these concretes perlite. This s...

Abstract. Brick is a building material widely used as construction for walls and fences, one of which uses Pozzolan brick. brick made from Trass, lime, or cement. A local that can be an additional fiber in the mixture making fibers, because it has been proven addition fibers concrete improve its physical mechanical properties, addition, also have hard rotten nature there no decomposer decompose...

OBJECTIVES Fast-setting pozzolan cement (Endocem, Maruchi) was recently developed. The aim of this study was to investigate the effects of various root canal irrigants on the washout of Endocem in comparison to the previously marketed mineral trioxide aggregate (ProRoot; Dentsply) in a furcal perforation model. MATERIALS AND METHODS ProRoot and Endocem were placed into acrylic molds on moist ...