Strength Properties Of Cement Mortar Research Articles

Investigating the Strength Properties of Cement Mortar Using Ground Granulated Blast Furnace Slag (GGBFS) for Partial Replacement of Cement

Investigating the Strength Properties of Cement Mortar Using Ground Granulated Blast Furnace Slag (GGBFS) for Partial Replacement of Cement

Mechanical Properties of Basalt Fiber Reinforced Perlite Aggregate Cement Mortars

– In this study, the mechanical properties of basalt fiber reinforced perlite aggregate cementmortars were investigated. The aim of the research was to determine the effect of basalt fiber on the strengthproperties of cement mortar and to identify the optimal fiber content. Specimens with different proportionsof basalt fiber were prepared, and their compressive and flexural strengths were measured at 7 days and 28days. A control specimen with no fiber reinforcement (B0) was used for comparison.The results showed that basalt fiber generally enhanced the strength of the cement mortar. The specimenswith basalt fiber reinforcement exhibited higher compressive and flexural strengths compared to the controlspecimen (B0). Particularly, a more significant increase in strength values was observed in the specimenswith basalt fiber at the 28-day testing period. However, the effect of basalt fiber content and distributionvaried among the specimens. In some specimens (B1.5, B2, B3), a slight decrease in strength was observedat certain testing periods.This study highlights the significance of basalt fiber reinforced perlite aggregate cement mortars as aresearch area, considering the increasing demand for their use in construction applications.

Influence of Hybrid Nano-Particles on Properties of Cement Mortar

Development of voids is one among the important properties that deprive the strength and durability of cement concrete. Voids not only been developed between heterogeneous ingredients of concrete but as well among the homogenous ingredients due to improper compaction and poor quality of materials etc. In this study, an attempt has been taken to study the effect of reduction in voids among the homogenous materials on strength properties of cement mortar. To counteract formation of voids, a Nano-material (Ceric Ammonium Nitrate H8N8CeO18) is being loaded over another Nano-material (Silica SiO2) each having different properties to act as a single Hybrid Nanomaterial (HN). Pore volume analysis, Infra-red test, and SEM analysis were performed to study the properties of HN. On the other hand, various tests like setting time, compressive strength and split tensile strength were performed on cement mortar specimens upon addition of HN by 3%, 5%, 7%and 10% by weight of cement. Results reveal that strength of mortar with HN is higher compared to mortar with Nano silica as well as conventional cement mortar specimens.

Insights into surface crack propagation of cement mortar with different cement fineness subjected to freezing/thawing

As cementitious material freezes and thaws, cracks may expand due to the weakness in the internal structure, the behavior that influences properties and potential applications. Hence, investigation of cement strength, which is affected by cement fineness, is prior to limit the propensity of cracking through the improvement of internal structure as well as the bond between cement paste and aggregate. In this regard, the tests of porosity, flexural, and compressive in macro-level and SEM/XRD/EDX analysis in micro-level were conducted to clarify the effect of cement fineness on variations of macro- and micro-properties of cement mortar specimens subjected to different freezing/thawing cycles (50, 100, 150, and 200). The detection and tracking of cracks were also determined using image analysis. Based on experimental evidence, it was found that the influence of fine cement on the porosity and strength properties of cement mortar was greater than coarse cement; this also was clarified by changes of cement paste micro-structure. Moreover, the image analyses showed that the use of fine cement led to a decrease in the crack width, whereas the crack tortuosity to find the path growth was increased. Consequently, cracks behavior was found to correlate with the cement paste micro-structure, whose characteristics relate to the cement fineness.

Investigation on Enhancing the Compressive Strength of Cement Mortar using Nano SiO2

The objective of this research work is to investigate the strength properties of cement mortar using NanoSiO2 used in the mortar mixture. Nano material in mortar helps to fill the pores by replacement of cement 1%, 2%, 3%, 4% with superplasticizer 1%, 2% and W/b ratio 0.25, 0.35 and 0.50 used in thiswork. Addition of NanoSiO2 in mortar mixtures has been found to give better compressive strength. Further, Nano cement, Nano flyash and Nano sand are also used in this experimental work as a replacement for cement and sand to the Nano level for the purpose of investigation. Analyse the internal structures of different mortar mixture with Nano sand, Nano cement, Nano fly ash.

건식 및 습식 나노 혼화재를 사용한 시멘트 모르타르의 강도 특성

실리카흄과 이산화티타늄을 건식 및 습식방식에 의해 나노화하여 시멘트 모르타르의 강도특성실험을 수행하였다. 실험변수는 건식 및 습식 방식으로 제조된 혼화재를 각각 5,10,15,20%의 첨가율로 하였다. 그 결과 실리카흄과 이산화티타늄을 사용했을 때의 시멘트 모르타르 강도 특성이 유사하게 나타났으며 건식과 습식 혼화재의 비교에서는 습식 혼화재를 사용했을 때가 더 큰 강도 특성을 보였다. Strength properties of cement mortar was carried out silica fume(SF) and Titanium Dioxide(<TEX>$TIO_2$</TEX>) by nano admixture of dry process and wet process. Experimental parameters were Nano admixture as the dry process and wet process 5, 10, 15 or 20%. As a result, strength properties of cement mortar by silica fume(SF) and Titanium Dioxide(<TEX>$TIO_2$</TEX>) were similar and in a comparative experiment of the dry process and wet process Nano admixture using wet process Nano admixture showed a greater strength properties.

Comparative Effect of Bio-waste Ashes on Strength Properties of Cement Mortar

Comparative Effect of Bio-waste Ashes on Strength Properties of Cement Mortar