Waqas Latif Baloch

• PhD Civil Engineering
• PhD Student at Toronto Metropolitan University

In this research, we produced eco-friendly and thermal efficient normal and lightweight concretes with different dosages of sawdust as replacement of sand. Conventional NWC containing 0, 5, 10, and 15% sawdust and LWC containing 0 and 10% sawdust of total dry volume of sand were evaluated in terms of volumetric shrinkage, compressive strength, flex...

An experimental program was developed to evaluate the effect of multi-walled carbon nanotubes (MWCNTs) inclusion on elevated temperature properties of normal weight concrete (NWC) and lightweight concrete (LWC). The mechanical performance was assessed by conducting material property tests namely compressive strength (f’c ,T ), tensile strength (f’t...

Fire poses serious threat to the life of structure and occupants, as it induces detrimental effects at structural level both short term and long term. Keeping in view the importance of fire performance of concrete , various researchers have evaluated the behavioral characteristics of concrete under such conditions. The safety and serviceable life o...

There has been an increasing interest in the field of rehabilitation, mainly for repair and strengthening of reinforced concrete (RC) structures. One of the most effective techniques comprises externally bonded concrete composites, in which the efficacy of rehabilitation depends considerably on the integrity and durability of the bond established b...

Carbon sequestration in modern cementitious materials has emerged as a critical study domain in the attempt to reduce global carbon emissions. This review analyzes the capacity of diverse and innovative concrete types, such as engineered cementitious composites (ECC), ultra-high-performance concrete (UHPC), limestone calcined clay cement (LC3)-base...

Composite systems (CSs) incorporating various concrete types have been introduced to enhance the performance of conventional concretes, while optimising the economic applicability of modern concretes. Systems consisting of layers of high-performance fibre-reinforced concrete (HPFRC) in tension combined with compressive self-consolidating concrete (...

The influence of various supplementary cementitious materials (SCMs) and fibres on the fire resistance of composite systems that combine engineered cementitious composites (ECCs) in tension with self-compacting concrete (SCC) in compression was examined. The study was designed to determine the ideal ECC formulation for optimising mechanical propert...

When used with self-compacting concrete (SCC) in a fresh state, engineered cementitious composites (ECC) can enhance flexural properties and durability. There is, however, some uncertainty as to whether the composites and their related interfacial bonds will endure high temperatures. This article investigates how fire exposure affects hot-jointed c...

The use of Engineered Cementitious Composites (ECC) and ultra-high-performance concrete (UHPC) in combination with self-consolidating concrete (SCC) in a fresh state can improve the economical and sustainability benefits of modern concretes while increasing the structural properties of SCC-elements. However, it is important to determine if the resu...

This paper investigates the performance of composite systems combining self-consolidating concrete (SCC) and normal strength concrete (NSC) under fire exposure. SCC was used in the compression zone while NSC was overlaid in the tensile zone. The resulting systems were exposed to high temperatures ranging from 23 to 800 °C. Two types of cooling regi...

An eco-friendly high strength concrete (HSC) was developed with integration of wood waste (0, 5, 10, and 15%) in replacement to weight content of fine aggregate. Wood waste (sawdust) potentially a thermally degradable fiber was incorporated to enhance the fire endurance of high strength concrete. Mechanical strength and durability parameters of con...

An experimental program was designed to investigate the residual properties of high strength concrete (HSC) modified with different percentages of graphite nano/micro platelets (GNMPs) after exposure to elevated temperature. Mechanical properties such as compressive and tensile strength, stress–strain response, elastic modulus and mass loss have be...

Carbon nanotubes (CNTs) and graphite nanoplatelets (GNPs) belong to the family of graphite nanomaterials (GNMs) and are promising candidates for enhancing properties of cementitious matrix. However, the problem lies with their improper dispersion. In this paper graphite nanoplatelets are used with carbon nanotubes for dispersion facilitation of CNT...

One of mankind's biggest achievements has been to harness fire which has quickened the pace of technological advancements. While we have benefitted greatly, we have suffered none the less. Structural fires have been a huge problem for the past few decades and the loss of property and life has been immense. Concrete structures are generally consider...

One of mankind's biggest achievements has been to harness fire which has quickened the pace of technological advancements. While we have benefitted greatly, we have suffered none the less. Structural fires have been a huge problem for the past few decades and the loss of property and life has been immense. Concrete structures are generally consider...

After fire exposure the reinforced concrete structures lose strength and durability. Mapping the damage caused by fire exposure becomes extremely important to assess the serviceability of a fire exposed building. This case study covers in brief the structural health assessment of a fire damaged structure. To unravel the heating history various tech...