effects of slag addition on the crushing strength of concrete block

Autoclaved aerated concrete (AAC), a lightweight building material, is widely used in buildings due to its good insulation properties, high heat resistance, low density, low shrinkage, and sufficient strength [1,2].The densities of the final AAC products are generally between 400 and 800 kg/m 3, and the compressive strengths of the AAC …

In this study, portland cement (PC) has been partially replaced with a Class F fly ash (FA) at level of 70 % to produce high-volume FA (HVFA) concrete (F70). F70 was modified by replacing FA at levels of 10 and 20 % with silica fume (SF) and ground granulated blast-furnace slag (GGBS) and their equally combinations. All HVFA …

Enormous demand and production for cement and concrete lead to a sharp increase in carbon dioxide emissions, and alternatives to cement are urgently needed to …

The aggregate demand occurs due to increased growth rate of construction activities. The insufficiency of aggregates is result of demand which arise problem and it addressed by novel technique for creating non-traditional aggregates to replace traditional coarse aggregates. This work comprises a unique methodology to study the …

SSA has favorable mechanical properties, including strong crushing and shear strength and high resistance to abrasion and impact. Its crushing, Los Angeles …

The results showed that increasing the amount of steel slag in concrete decreased its compressive strength, particularly its early strength, permeability, and ability to resist carbonation under constant W/B conditions.

Compared to fine aggregate, copper slag, which was used in the study, has a fineness modulus of 2.20, a higher S.G of 3.83, and a bulk density of 2120 kg/m 3, resulting in concrete with a higher density. Further, water absorption is found to be 0.5%. According to these findings, copper slag has a lower surface porosity than sand and may …

based on range analysis. The effect of granite waste on the compressive strength and durability of the blocks was also analyzed. In addition, the economic effects of the granite waste concrete hollow block were analyzed. The results show that granite waste concrete hollow blocks with a water-

As the curing age increases, obviously, the strength of slag-blended concrete with higher slag ratios increases faster, and at a late age, such as 360 days, …

The results show that the addition of steel slag as fine aggregate can improve the static and dynamic compressive strength of concrete; the compressive strength of the SSC subjected to impact ...

Abstract. In this work, we aim to prepare M30 grade concrete utilizing copper slag as a replacement material for fine aggregates in proportions of 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and in the concrete. The experiment was conducted at constant w/b and w/c ratios with varying amounts of superplasticizer, and …

The addition of furnace slag was successful in reducing the negative effects of steel slag on strength. Steel slag is claimed to be a very effective mineral …

This paper presents the effect of slag addition on strength development and workability of fly ash/slag based geopolymer (FASLG) concrete cured at normal temperature. Class C fly ash with high ferrite (Fe) content was used as the primary material. The proportions of fly ash (FA) to slag (SL) are: 1 FA : 0 SL, 0.9 FA : 0.1 SL, 0.7 FA : 0.3 …

Bellum, et al. [9] studied the effects of using 0-10% RM in the geopolymer concrete and (1) found that replacing 10% RM for fly ash improved the concrete strength and durability because it reduced ...

This study examined the effect of various design parameters on the relationship between compressive strength and ultrasonic pulse velocity (UPV) of geopolymer concrete. To prepare the data set, a series of samples were made with increasing alkaline activator liquid to binder (AAL/B) ratios and varying densities. The …

The use of slag in concrete has several benefits, including reduced energy, reduced greenhouse gas emissions, and reduced use of raw materials. Various types of …

The higher compressive strength was obtained with the addition of cupola slag up to 30% substitution level; a reduced strength was observed with an increase in substitution level.For M20 and M25 grade concrete, Balaraman et al. [13] attained maximum compressive strengths of 33.77 N/mm 2 and 38.22 N/mm 2, respectively, by …

In addition, the intrinsic poor strength of WCP-granulated AAs results in compressive strength reduction of the incorporated concrete by over 36% compared with that prepared with natural aggregates [33]. Therefore, finding effective methods to enhance the crushing strength of AAs is of great importance.

The bonding properties of geopolymer concrete and cement concrete was studied. • The effects of slag and alkaline solution contents bonding strength are studied. ... .9 MPa and 62.1 MPa when the curing ages are 8 h, 1 d, 3 d and 24 d, which satisfies the requirements of compressive strength. In addition, due to the high early strength of ...

research aims to design printable geopolymer and study the bond strength phenomena for two different structuration rates. Like other 3D processes, in concrete , the structure behaves anisotropic in nature depending on the layering effect and inter-bond strength. Le et al.

The results show that the addition of steel slag as fine aggregate can improve the static and dynamic compressive strength of concrete; the compressive …

A new type of lightweight aggregate concrete hollow block with volcanic slag has been developed by means of the pore structure of the main design, and the revised formula of the compressive ...

slag cement concrete. Above a temperature of 200°C a nd up to 300°C, the temperature ef fect. on the concrete's compressi ve strength became signif ican t. At 250°C. (5.98%) at 60 minutes but ...

Prismatic specimens with 40 × 40 × 160 mm dimensions were prepared from fresh mortar mixtures and de-molded after a day.Later, they were cured in water at 22 ± 2 °C.The compressive strength and flexural–tensile strength of specimens were measured at 1, 3, 7, 28, 90 and 180 days.In addition, the dry unit weights, carbonation depths and …

fine aggregate and addition of glass fibre to know the variation in the strength of the paver block when compared to the conventional paver blocks .the percentage was chosen between 15% to 60%.The experimental tests conducted are compressive strength, flexural strength and water absorption test.The optimum result was obtained at

The addition of up to 20% zeolite for ordinary concrete increased tensile strength by 10%. For high-strength concrete, the addition of 20% zeolite along with 7.5% silica fume showed a 25% increase ...

DOI: 10.2139/ssrn.4396977 Corpus ID: 257713081; Effects of Slag and Alkaline Solution Contents on Bonding Strength of Geopolymer-Concrete Composites @article{Fan2023EffectsOS, title={Effects of Slag and Alkaline Solution Contents on Bonding Strength of Geopolymer-Concrete Composites}, author={Lu Fan and D.K. …

However, the addition of 50% slag tend to reduce the strength at 28 days. x The fly ash/slag-based geopolymer concrete with 30% slag addition showed a comparable compressive strength to that normal concrete at 28 days. x The addition of slag on fly ash-based gepolymer concrete can provide a solution on heat curing treatment …

GGBS is a finely powdered iron slag by-product of the steel-making industry. The mechanical characteristics of M40 grade concrete with partially replaced cement of 30%, 40%, and 50% by GGBS are examined in this study. All mix design specifications and material test data are carried out per IS codes, for a curing time of 7, 14, and 28 days ...

effects of curing on concrete with copper slagcrushing high temperature slag blocks qlifebe. Effects of Copper Slag as a Replacement for Effects of Copper Slag as a Replacement for Fine Aggregate on the Behavior and Ultimate Strength of Reinforced Concrete Slender Columns Use of copper slag CS as a replacement for fine aggregate …

Concrete Properties. The physical properties of Ground Granulated blast furnace slag (GGBFS) provides advantages to the concrete in fresh state as well as in its hardened state. It is always recommended for a concrete mix design, that would provide us with a denser mass of concrete, i.e. a solid that is free from voids.

Concrete consists of cement, fine and coarse aggregates which are used as a building material worldwide as it contributes good performance in strength properties [].Cement acts as a binder material when reacted with water which plays a major role in strength development; cement production was about 22.48 and 20.85 mega-tons in …

Effects of Slag Addition and Mechanical Pre-Processing on the Properties of ... concrete strength gain maybe achieved by SCM addition . For example, introducing GGBS at …

Homogenized micro-crack crushing can fully retain the bearing capacity of concrete pavement, but local weak road base needs to be reinforced before being directly overlaid with hot-mixed asphalt. Therefore, indoor tests were conducted to study the mechanical properties of slag-based geopolymer as a grouting material for weak road …

The cube was dried in an oven at 105 °C for at least 24 h, and the mass of the cubes after drying was recorded as shown in Table 7. Water absorption for self-curing concrete incorporated with steel slag is 3.48%, lower than the control mix of 4.02%. Table 7 Durability performance—optimum mix versus control mix.

strength reduced, but the split tensile strength improved upon the addition of silica fume up to 10 %. Ahmed and Ridha [8] observed the effect of steel fibre on lightweight aggregate concrete.

RCA could cause a significant negative influence on the dynamic compressive strength and impact toughness of geopolymeric concrete, and this negative effect increased with increasing RCA content. Nevertheless, the DIF of GRAC increased with increasing RCA content, suggesting that the addition of RCA improved the strain …

The present study evaluates the effect of utilising granulated blast furnace slag as a partial substitution of the fine fraction of natural aggregates on various concrete parameters using the general factorial approach. Two levels of the water/cement ratio (0.45 and 0.5) and four different percentages of granulated blast furnace slag (0, 20%, 40% …

Table 1 presents the details of the concrete mix design, including three strength grades (C30, C40, and C50) and three SSA replacement ratios (0 %, 50 %, and 100 %). Each strength-grade concrete was designed with three SSA replacement ratios of 0 %, 50 %, and 100 % to replace NA in equal volume. A water reducer was used to improve the …

This study investigated the influence of four different aggregate systems (i.e., full-NA, full-recycled coarse aggregate, full-recycled fine aggregate, and full-RA) and three different replacement ratios of steel slag (i.e., 0%, 25%, and 50% of the precursor) on the mechanical properties (compressive and splitting tensile strength) and fracture ...